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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2018	Jul. 27, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Entity Registrant Name	YRC Worldwide Inc.
Entity Central Index Key	0000716006
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,051,407

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 158.7	$ 91.6
Restricted amounts held in escrow	0.0	54.1
Accounts receivable, net	553.9	488.3
Prepaid expenses and other	82.2	66.1
Total current assets	794.8	700.1
Property and Equipment:
Cost	2,745.8	2,770.2
Less – accumulated depreciation	(1,971.2)	(1,957.5)
Net property and equipment	774.6	812.7
Other assets	75.1	72.7
Total Assets	1,644.5	1,585.5
Liabilities and Shareholders’ Deficit
Accounts payable	193.7	172.0
Wages, vacations and employee benefits	224.6	182.3
Claims and insurance accruals	116.4	115.1
Other accrued taxes	25.0	23.6
Other current and accrued liabilities	24.4	20.6
Current maturities of long-term debt	28.5	30.6
Total current liabilities	612.6	544.2
Other Liabilities:
Long-term debt, less current portion	864.7	875.5
Deferred income taxes, net	3.1	3.1
Pension and postretirement	226.6	235.4
Claims and other liabilities	281.6	280.8
Commitments and contingencies
Shareholders’ Deficit:
Preferred stock, $1 par value per share	0.0	0.0
Common stock, $0.01 par value per share	0.3	0.3
Capital surplus	2,326.6	2,323.3
Accumulated deficit	(2,228.8)	(2,228.6)
Accumulated other comprehensive loss	(349.5)	(355.8)
Treasury stock, at cost (410 shares)	(92.7)	(92.7)
Total shareholders’ deficit	(344.1)	(353.5)
Total Liabilities and Shareholders’ Deficit	$ 1,644.5	$ 1,585.5

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Treasury stock, shares (in shares)	410	410

Statements of Consolidated Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Operating Revenue	$ 1,326.5	$ 1,260.6	$ 2,541.0	$ 2,431.2
Operating Expenses:
Salaries, wages and employee benefits	756.0	736.4	1,485.7	1,454.8
Fuel, operating expenses and supplies	242.0	209.7	472.2	426.0
Purchased transportation	177.2	159.6	332.6	294.1
Depreciation and amortization	37.6	37.2	75.3	74.3
Other operating expenses	60.6	65.5	123.2	126.8
Losses (gains) on property disposals, net	2.2	(1.0)	5.4	1.7
Total operating expenses	1,275.6	1,207.4	2,494.4	2,377.7
Operating Income	50.9	53.2	46.6	53.5
Nonoperating Expenses:
Interest expense	25.5	25.7	51.1	51.1
Non-union pension and postretirement benefits	(0.4)	3.2	(0.9)	6.5
Other, net	1.0	1.7	(0.9)	2.7
Nonoperating expenses, net	26.1	30.6	49.3	60.3
Income (loss) before income taxes	24.8	22.6	(2.7)	(6.8)
Income tax expense (benefit)	10.4	3.6	(2.5)	(0.5)
Net income (loss)	14.4	19.0	(0.2)	(6.3)
Other comprehensive income, net of tax	4.3	6.0	6.3	10.4
Comprehensive Income	$ 18.7	$ 25.0	$ 6.1	$ 4.1
Average Common Shares Outstanding – Basic (in shares)	32,966	32,715	32,894	32,642
Average Common Shares Outstanding – Diluted (in shares)	33,794	33,322	32,894	32,642
Basic and Diluted Loss Per Share
Income (loss) Per Share – Basic (in dollars per share)	$ 0.44	$ 0.58	$ 0.00	$ (0.19)
Income (loss) Per Share – Diluted (in dollars per share)	$ 0.43	$ 0.57	$ 0.00	$ (0.19)

Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities:
Net loss	$ (0.2)	$ (6.3)
Noncash items included in net loss:
Depreciation and amortization	75.3	74.3
Noncash equity-based compensation and employee benefits expense	12.1	11.7
Losses on property disposals, net	5.4	1.7
Other noncash items, net	3.6	6.8
Changes in assets and liabilities, net:
Accounts receivable	(65.6)	(61.5)
Accounts payable	17.8	(0.3)
Other operating assets	(17.4)	(0.6)
Other operating liabilities	40.5	14.9
Net cash provided by operating activities	71.5	40.7
Investing Activities:
Acquisition of property and equipment	(46.5)	(39.0)
Proceeds from disposal of property and equipment	4.2	6.7
Net cash used in investing activities	(42.3)	(32.3)
Financing Activities:
Repayments of long-term debt	(14.6)	(9.4)
Debt issuance costs	0.0	(3.2)
Payments for tax withheld on equity-based compensation	(1.6)	(2.3)
Net cash used in financing activities	(16.2)	(14.9)
Net Increase (Decrease) In Cash, Cash Equivalents and Restricted Amounts Held in Escrow	13.0	(6.5)
Cash, Cash Equivalents and Restricted Amounts Held in Escrow, Beginning of Period	145.7	275.7
Cash, Cash Equivalents and Restricted Amounts Held in Escrow, End of Period	158.7	269.2
Supplemental Cash Flow Information:
Interest paid	(49.4)	(54.1)
Income tax refund (payment), net	$ (2.9)	$ 3.0

Statement of Consolidated Shareholders' Deficit (Unaudited) - 6 months ended Jun. 30, 2018 - USD ($) $ in Millions	Total	Preferred Stock:	Common Stock:	Capital Surplus:	Accumulated Deficit:	Accumulated Other Comprehensive Loss:	Reclassification of prior net pension actuarial losses, net of tax	Reclassification of prior service credit, net of tax	Foreign currency translation adjustments	Treasury Stock, At Cost:
Beginning balance at Dec. 31, 2017				$ 2,323.3	$ (2,228.6)	$ (355.8)				$ (92.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation				3.3
Net loss					(0.2)
Change in other comprehensive income							$ 7.6	$ (0.2)	$ (1.1)
Ending balance at Jun. 30, 2018	$ (344.1)	$ 0.0	$ 0.3	$ 2,326.6	$ (2,228.8)	$ (349.5)				$ (92.7)

Description of Business

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Description of Business

YRC Worldwide Inc. (also referred to as “YRC Worldwide,” the “Company,” “we,” “us” or “our”) is a holding company that, through wholly owned operating subsidiaries, offers its customers a wide range of transportation services. YRC Worldwide has one of the largest, most comprehensive less-than-truckload (“LTL”) networks in North America with local, regional, national and international capabilities. Through our team of experienced service professionals, we offer expertise in LTL shipments and flexible supply chain solutions, ensuring customers can ship industrial, commercial and retail goods with confidence. Our reporting segments include the following:

•

YRC Freight is the reporting segment that focuses on longer haul business opportunities with national, regional and international services. YRC Freight provides for the movement of industrial, commercial and retail goods, primarily through centralized management. This reporting segment includes YRC Inc. (doing business as, and herein referred to as, “YRC Freight”), our LTL subsidiary, and Reimer Express Lines Ltd. (“YRC Reimer”). YRC Reimer is a subsidiary located in Canada that specializes in shipments into, across and out of Canada. In addition to the United States and Canada, YRC Freight also serves parts of Mexico and Puerto Rico.

•

Regional Transportation is the reporting segment for our transportation service providers focused on business opportunities in the regional and next-day delivery markets. Regional Transportation is comprised of USF Holland LLC (“Holland”), New Penn Motor Express LLC (“New Penn”) and USF Reddaway Inc. (“Reddaway”). These companies each provide regional, next-day ground services in their respective regions through a network of facilities located across the United States, Canada, and Puerto Rico.

At June 30, 2018, approximately 79% of our labor force is subject to collective bargaining agreements, which predominantly expire in March 2019.

Principles of Consolidation	6 Months Ended
Principles of Consolidation	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of Consolidation The accompanying Consolidated Financial Statements include the accounts of YRC Worldwide and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. We report on a calendar year basis. The quarters of the Regional Transportation companies (with the exception of New Penn) consist of thirteen weeks that end on a Saturday either before or after the end of March, June and September, whereas all other operating segment quarters end on the natural calendar quarter end. For ease of reference, the calendar quarter end dates are used herein. We make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and notes. Actual results could differ from those estimates. We have prepared the Consolidated Financial Statements, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In our opinion, we have made all normal recurring adjustments necessary for a fair statement of the financial position, results of operations and cash flows for the interim periods included in these financial statements. Certain information and note disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted from these statements pursuant to SEC rules and regulations. Accordingly, the accompanying Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2017. Certain reclassifications have been made to prior year’s consolidated financial statements to conform to current year presentation. Total net periodic pension cost associated with the Company’s non-union defined benefit plans that was previously reported in operating expenses in the income statement is now reported in nonoperating expenses due to the adoption of Accounting Standards Update (“ASU”) 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, discussed further below. This resulted in a $3.2 million and $6.5 million reclassification from “Salaries, wages and employee benefits” in operating expenses to “Non-union pension and postretirement benefits” in nonoperating expenses for the three and six months ended June 30, 2017, respectively. In addition, due to the adoption of ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, cash paid to a taxing authority when shares are withheld to satisfy the employer’s statutory income tax withholding obligation are now required to be classified as a financing activity. This resulted in a $2.3 million reclassification in the six months ended June 30, 2017 from “Change in other operating liabilities” in cash flows from operating activities to “Payments for tax withheld on equity-based compensation” in cash flows from financing activities in the statement of consolidated cash flows. Reclassifications Out of Accumulated Other Comprehensive Loss For the three and six months ended June 30, 2018, we reclassified the amortization of our prior net pension losses and prior net service credit, net of tax, totaling $3.7 million and $7.4 million, respectively, from accumulated other comprehensive loss to net income (loss). For the three and six months ended June 30, 2017, we reclassified the amortization of our prior net pension loss, net of tax, totaling $3.9 million and $7.8 million, respectively, from accumulated other comprehensive loss to net income (loss). This reclassification is a component of net periodic pension cost and is discussed in the “Employee Benefits” footnote to the consolidated financial statements. Revenue Recognition and Revenue-Related Reserves The Company’s revenues are derived from the transportation services we provide through the delivery of goods over the duration of a shipment. Upon receipt of the bill of lading, the contract existence criteria is met as evidenced by a legally enforceable agreement between two parties where collectability is probable, thus creating the distinct performance obligation. The Company has elected to expense initial direct costs as incurred because the average shipment cycle is less than one week. The YRC Freight and Regional Transportation segments recognize revenue and substantially all the purchased transportation expense on a gross basis because we direct the use of the transportation service provided and remain responsible for the complete and proper shipment. Inherent within our revenue recognition practices are estimates for revenue associated with shipments in transit and future adjustments to revenue and accounts receivable for billing adjustments and collectability. For shipments in transit, we record revenue based on the percentage of service completed as of the period end and recognize delivery costs as incurred. The percentage of service completed for each shipment is based on how far along in the shipment cycle each shipment is in relation to standard transit days. Standard transit days are defined as our published service days between origin zip code and destination zip code. The total revenue earned is accumulated for all shipments in transit at a particular period end and recorded as operating revenue. Given the nature of our transportation services, future adjustments may arise which creates variability when establishing the transaction price used to recognize revenue. We have a high volume of performance obligations with similar characteristics, therefore we primarily use historical trends to arrive at estimated reserves. For rerate reserves, which are common for LTL carriers, we assign pricing to bills of lading at the time of shipment based primarily on the weight, general classification of the product, the shipping destination and individual customer discounts. This process is referred to as rating. At various points throughout our process, incorrect ratings could be identified based on many factors, including weight and commodity verifications. Although the majority of rerating occurs in the same month as the original rating, a portion occurs during the following periods. For the reserve for uncollectible accounts, we primarily use historical write-off experience but may also consider customer-specific factors, overall collection trends and economic conditions as part of our ongoing monitoring of credit. We considered the disclosure requirements for revenue disaggregation guidance in ASC Topic 606 and noted that our segments disaggregate our revenues based on geographic and time-based factors as our Regional Transportation segment carriers operate in a smaller geographic footprint and have a shorter length of haul as compared to our YRC Freight segment. No other criteria listed in the guidance or through our review process was considered to be meaningful for financial statement users. As such, we conclude that no further disaggregation of revenues is necessary. Refer to the “Business Segments” footnote to the consolidated financial statements for more details. Newly Adopted Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-09, Revenue from Contracts with Customers. The new standard became effective for the Company for its annual reporting period beginning January 1, 2018, recognizing the cumulative effect using a modified retrospective approach. There was no cumulative effect adjustment recorded. The Company has completed the implementation including the impacts of new expanded disclosure requirements and the impacts on the Company’s internal control over financial reporting and has included updates to our disclosures herein. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows, to clarify the guidance on how companies present restricted cash and restricted cash equivalents in the statement of cash flows. As a result, the Company no longer presents transfers between cash and cash equivalents and restricted cash in the statement of cash flows. The new standard became effective for the Company for its annual reporting period beginning January 1, 2018, and was adopted using a retrospective transition approach. The statement of consolidated cash flows has been updated to reflect the presentation of beginning and ending cash to include “Cash and cash equivalents” as well as “Restricted amounts held in escrow” and removed changes in restricted escrows as a component of investing activities. In March 2017, the FASB issued ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires companies to present the service cost component of net benefit cost in the same income statement line item as other employee compensation costs arising from services rendered during the period. All other components of net benefit cost are presented outside of any subtotal for operating income, if one is presented. The new standard was effective and implemented for the Company for its annual reporting period beginning January 1, 2018, with retrospective application. Impact of Recently Issued Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases, which requires lessees to recognize a right-to-use asset and a lease obligation for all leases. Additional qualitative and quantitative disclosures, including significant judgments made by management, will be required. The new standard will become effective for the Company for its annual reporting period beginning January 1, 2019, including interim periods within that reporting period. The Company will adopt the standard using a modified retrospective approach with the effective date of the standard as the date of initial application. Upon adoption, the Company plans to elect the package of three practical expedients which allows entities to not reassess initial direct costs, lease classification for existing or expired leases, and lease definition for existing or expired contracts as of the effective date of January 1, 2019. Additionally, the Company does not plan to elect the hindsight method practical expedient which would allow us to reassess lease terms and impairment. For leases with a term of twelve months or less, the Company plans to make an accounting policy election in which the right of use lease asset and lease liability will not be recognized on the consolidated balance sheet. The Company does not plan to separate lease and non-lease components for its revenue equipment and real property leases. Using a cross functional team, the Company has identified a software solution to measure and record right-of-use asset and liability balances and has entered a majority of the existing leases into the solution. The Company will continue to evaluate contractual lease obligations and refine our understanding of the accounting impacts and the necessary updates to our internal controls over financial reporting from the adoption of the new standard. We expect the adoption of this standard will have a material impact on the consolidated financial statements through the recognition of significant right-of-use assets and liabilities. The income statement impact continues to be evaluated. In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in response to the Tax Cuts and Jobs Act of 2017 (the “Tax Act”), to provide the option to reclassify certain tax effects out of other comprehensive income and to retained earnings. The Company elected not to apply this reclassification option as it will not have a material impact on our consolidated financial statements.

Debt and Financing

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Debt and Financing

Our outstanding debt as of June 30, 2018 consisted of the following:



As of June 30, 2018 (in millions)	Par Value			Discount			Debt Issuance Costs			Book Value			Stated Interest Rate			Average Effective Interest Rate
Term Loan	$	586.5		$	(9.1	)	$	(7.4	)	$	570.0		10.6	%	^(a)	11.0	%
ABL Facility	—			—			—			—			N/A			N/A
Secured Second A&R CDA	26.9			—			(0.1		)	26.8			7.0-18.3%			7.9	%
Unsecured Second A&R CDA	48.2			—			(0.3		)	47.9			7.0-18.3%			7.9	%
Lease financing obligations	249.1			—			(0.6		)	248.5			8.7-18.2%			12.0	%
Total debt	$	910.7		$	(9.1	)	$	(8.4	)	$	893.2
Current maturities of Term Loan	(18.0		)	—			—			(18.0		)
Current maturities of lease financing obligations	(9.0		)	—			—			(9.0		)
Current maturities of Unsecured Second A&R CDA	$	(1.5	)	$	—		$	—		$	(1.5	)
Long-term debt	$	882.2		$	(9.1	)	$	(8.4	)	$	864.7


(a)	Variable interest rate of 1, 3 or 6-month LIBOR, with a floor of 1.0%, plus a fixed margin of 8.50%.

ABL Facility Availability

Our principal sources of liquidity are cash and cash equivalents, available borrowings under our asset-based loan facility (the

“ABL Facility”) and any prospective net cash flow from operations. As of June 30, 2018, our availability under our ABL Facility was $74.7 million, which is derived by reducing the amount that may be advanced against eligible receivables plus eligible borrowing base cash by certain reserves imposed by the ABL Agent and our $351.5 million of outstanding letters of credit. Our Managed Accessibility was $32.1 million, which is the measure of availability management uses based on the ABL requirement to maintain availability in an amount at least equal to or above 10% of the collateral line cap. Our cash and cash equivalents and Managed Accessibility were $190.8 million as of June 30, 2018.

Credit Facility Covenants

The credit agreement (the “Term Loan Agreement”) governing our term loan facility (the “Term Loan”) has certain financial covenants, that, among other things, restrict certain capital expenditures and require us to comply with a maximum total leverage ratio covenant (defined as Consolidated Total Debt divided by Consolidated Adjusted EBITDA as defined below).

Our total maximum leverage ratio covenants are as follows:



Four Consecutive Fiscal Quarters Ending	Maximum Total Leverage Ratio	Four Consecutive Fiscal Quarters Ending	Maximum Total Leverage Ratio
June 30, 2018	3.50 to 1.00	March 31, 2020	3.00 to 1.00
September 30, 2018	3.50 to 1.00	June 30, 2020	3.00 to 1.00
December 31, 2018	3.50 to 1.00	September 30, 2020	2.75 to 1.00
March 31, 2019	3.25 to 1.00	December 31, 2020	2.75 to 1.00
June 30, 2019	3.25 to 1.00	March 31, 2021	2.75 to 1.00
September 30, 2019	3.25 to 1.00	June 30, 2021 and thereafter	2.50 to 1.00
December 31, 2019	3.00 to 1.00

Consolidated Adjusted EBITDA, defined in our Term Loan Agreement as “Consolidated EBITDA,” is a measure that reflects our earnings before interest, taxes, depreciation, and amortization expense, and is further adjusted for, among other things, letter of credit fees, equity-based compensation expense, net gains or losses on property disposals, restructuring charges, transaction costs related to issuances of debt, non-recurring consulting fees, expenses associated with certain lump sum payments to our union employees and the gains or losses from permitted dispositions and discontinued operations. Consolidated Total Debt, as defined in our Term Loan Agreement, is the aggregate principal amount of indebtedness outstanding. Our total leverage ratio for the four consecutive fiscal quarters ending June 30, 2018 was 3.18 to 1.00.

Impacts to our consolidated financial statements due to the implementation of ASC 842, Leases, on January 1, 2019 will not impact our compliance with the financial covenants included in our Term Loan Agreement as changes in generally accepted accounting principles subsequent to the date of the agreement are not required to be implemented for purposes of covenant calculations.

We believe that our results of operations will be sufficient to allow us to comply with the covenants in the Term Loan Agreement, fund our operations, increase working capital as necessary to support our planned revenue growth and fund capital expenditures for at least the next twelve months. Our ability to satisfy our liquidity needs and meet future stepped-up covenants beyond the next twelve months is dependent upon our ability to achieve operating results that reflect improvement over our 2017 results. Means for improving our profitability may include streamlining our support structure and networks, as well as ongoing successful implementation and realization of pricing, productivity and efficiency initiatives, in addition to increased volume and shipments, and increasing capital expenditures, some of which are outside of our control.

Fair Value Measurement

The book value and estimated fair values of our long-term debt, including current maturities and other financial instruments, are summarized as follows:



	June 30, 2018				December 31, 2017
(in millions)	Book Value		Fair value		Book Value		Fair value
Term Loan	$	570.0	$	595.8	$	576.8	$	596.9
Lease financing obligations	248.5		248.1		254.6		257.7
Second A&R CDA	74.7		76.3		74.7		75.3
Total debt	$	893.2	$	920.2	$	906.1	$	929.9

The fair values of the Term Loan and the Second Amended and Restated Contribution Deferral Agreement (the “Second A&R CDA”) were estimated based on observable prices (level two inputs for fair value measurements). The fair value of the lease financing obligations is estimated using a publicly-traded secured loan with similar characteristics (level three input for fair value measurement).

Employee Benefits

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Employee Benefits

Qualified and Nonqualified Defined Benefit Pension Plans

The following table presents the components of our Company-sponsored pension plan costs for the three and six months ended June 30:



	Three Months						Six Months
(in millions)	2018			2017			2018			2017
Service cost	$	0.1		$	1.3		$	0.2		$	2.6
Interest cost	10.9			12.8			21.8			25.6
Expected return on plan assets	(15.1		)	(14.8		)	(30.2		)	(29.6		)
Amortization of prior service credit	(0.1		)	—			(0.2		)	—
Amortization of prior net pension loss	3.7			3.9			7.4			7.8
Total net periodic pension cost	$	(0.5	)	$	3.2		$	(1.0	)	$	6.4

We expect to contribute $15.4 million to our Company-sponsored pension plans in 2018, of which we have contributed $2.3 million through June 30, 2018.

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our effective tax rate for the three and six months ended June 30, 2018 was 41.9% and 92.6%, respectively, compared to 15.9% and 7.4% for the three and six months ended June 30, 2017, respectively. The significant items impacting the 2018 rates include a provision for net state and foreign taxes, foreign withholding taxes related to dividends from a foreign subsidiary, certain permanent items, and a change in the valuation allowance established for the net deferred tax asset balance projected for December 31, 2018. The significant items impacting the 2017 rates include a provision for federal alternative minimum tax, a net state and foreign tax provision, certain permanent items, and a change in the valuation allowance established for the net deferred tax asset balance that had been projected for December 31, 2017. We recognize valuation allowances on deferred tax assets if, based on the weight of the evidence, we determine it is more likely than not such assets will not be realized. Changes in valuation allowances are included in our tax provision in the period of change. In determining whether a valuation allowance is warranted, we evaluate factors such as prior years’ earnings history, expected future earnings, loss carry-back and carry-forward periods, reversals of existing deferred tax liabilities and tax planning strategies that potentially enhance the likelihood of the realization of a deferred tax asset. At June 30, 2018 and December 31, 2017, substantially all of our net deferred tax assets were subject to a valuation allowance. As indicated in the Company’s 2017 Form 10-K, certain tax accounting items impacted by the Tax Act were considered provisional due to limited availability of official guidance. No items considered provisional in the 2017 Form 10-K have been finalized as of the quarter ending June 30, 2018.

Earnings (Loss) Per Share

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

We calculate basic earnings per share by dividing our net earnings by our weighted-average shares outstanding at the end of the period. The calculation for diluted earnings per share adjusts the weighted average shares outstanding for our dilutive unvested shares and stock units using the treasury stock method. Our calculations for basic and dilutive earnings per share for the three and six months ended June 30, 2018 and 2017 are as follows:



	Three Months				Six Months
(dollars in millions, except per share data, shares and stock units in thousands)	2018		2017		2018			2017
Basic and dilutive net income (loss) available to common shareholders	$	14.4	$	19.0	$	(0.2	)	$	(6.3	)

Basic weighted average shares outstanding	32,966		32,715		32,894			32,642
Effect of dilutive securities:
Unvested shares and stock units	828		607		—			—
Dilutive weighted average shares outstanding	33,794		33,322		32,894			32,642

Basic earnings (loss) per share^(a)	$	0.44	$	0.58	$	0.00		$	(0.19	)
Diluted earnings (loss) per share^(a)	$	0.43	$	0.57	$	0.00		$	(0.19	)


(a)	Earnings (loss) per share is based on unrounded figures and not the rounded figures presented.

At June 30, 2018 and 2017, our anti-dilutive unvested shares, options, and stock units were approximately 57,000 and 350,000, respectively.

Business Segments

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Business Segments

We report financial and descriptive information about our reporting segments on a basis consistent with that used internally for evaluating segment performance and allocating resources to segments. We evaluate segment performance primarily on external revenue, operating income (loss), and operating ratio.

We charge management fees and other corporate service fees to our reporting segments based on the benefits received or an overhead allocation basis. Shared support functions include information technology, legal, financial services, revenue management, and other company-wide services. Corporate represents residual operating expenses of the holding company that are not attributable to any segment and remain unallocated. Corporate identifiable assets primarily consist of cash and cash equivalents, restricted amounts held in escrow, and information technology assets, which are offset by eliminations with the two business segments.

As previously noted in our first quarter consolidated financial statements, we considered the disclosure requirements for revenue disaggregation guidance in ASC Topic 606 and noted that our segments disaggregate our revenues based on geographic and time-based factors as our Regional Transportation segment carriers operate in a smaller geographic footprint and have a shorter length of haul as compared to our YRC Freight segment.

The following table summarizes our operations by business segment:



(in millions)	YRC Freight		Regional Transportation		Corporate/ Eliminations			Consolidated
As of June 30, 2018
Identifiable assets	$	1,001.5	$	620.8	$	22.2		$	1,644.5
As of December 31, 2017
Identifiable assets	$	1,042.1	$	607.4	$	(64.0	)	$	1,585.5
Three Months Ended June 30, 2018
External revenue	$	827.6	$	499.0	$	(0.1	)	$	1,326.5
Operating income (loss)	$	26.8	$	29.2	$	(5.1	)	$	50.9
Six Months Ended June 30, 2018
External revenue	$	1,578.9	$	962.3	$	(0.2	)	$	2,541.0
Operating income (loss)	$	19.9	$	34.4	$	(7.7	)	$	46.6
Three Months Ended June 30, 2017
External revenue	$	789.5	$	471.2	$	(0.1	)	$	1,260.6
Operating income (loss)^(a)	$	30.9	$	25.3	$	(3.0	)	$	53.2
Six Months Ended June 30, 2017
External revenue	$	1,518.4	$	913.0	$	(0.2	)	$	2,431.2
Operating income (loss)^(a)	$	23.4	$	37.5	$	(7.4	)	$	53.5


(a)	Due to the adoption of ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,

“Operating income (loss)” for prior year has been updated to reflect the reclassification of pension expense.

Commitments, Contingencies and Uncertainties	6 Months Ended
Commitments, Contingencies and Uncertainties	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Uncertainties	Commitments, Contingencies and Uncertainties Leases As of June 30, 2018, our operating lease payment obligations through 2030 totaled $411.5 million and are expected to increase as we lease additional revenue equipment. Additionally, for the six months ended June 30, 2018, we entered into new operating leases for revenue equipment totaling $108.9 million in future lease payments, payable over an average lease term of four years. Other Legal Matters We are involved in litigation or proceedings that arise in ordinary business activities. When possible, we insure against these risks to the extent we deem prudent, but no assurance can be given that the nature or amount of such insurance will be sufficient to fully indemnify us against liabilities arising out of pending and future legal proceedings. Many of these insurance policies contain self-insured retentions in amounts we deem prudent. Based on our current assessment of information available as of the date of these consolidated financial statements, we believe that our consolidated financial statements include adequate provisions for estimated costs and losses that may be incurred within the litigation and proceedings to which we are a party.

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Yellow Corporation Pension Plan was amended in 2017 to permit the payment of lump sum benefit payments effective January 1, 2018. Subsequent to June 30, 2018, the 2017 amendment triggered a non-cash settlement charge due to the amount of lump sum benefit payments distributed from plan assets in 2018. The lump sum benefit payments reduce pension obligations and are funded from existing plan assets. The non-cash settlement charge results from the requirement to expense a portion of the Plan’s unrecognized actuarial losses associated with the lump sum settlements. Settlement accounting is triggered when the payment of lump sum benefits meet and exceed a minimum threshold in any fiscal year, a threshold which is based on the sum of the Plan’s service cost and interest cost. The non-cash settlement charge is determined by multiplying the unrecognized losses by the portion of the total projected benefit obligation settled through the payment of lump sums. The third and fourth quarter pension settlement charges cannot be determined at this time, as the actual amounts are dependent on various factors, including final lump sums paid, interest rates and the value of plan assets.

Principles of Consolidation (Policies)	6 Months Ended
Principles of Consolidation (Policies)	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying Consolidated Financial Statements include the accounts of YRC Worldwide and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. We report on a calendar year basis. The quarters of the Regional Transportation companies (with the exception of New Penn) consist of thirteen weeks that end on a Saturday either before or after the end of March, June and September, whereas all other operating segment quarters end on the natural calendar quarter end. For ease of reference, the calendar quarter end dates are used herein. We make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and notes. Actual results could differ from those estimates. We have prepared the Consolidated Financial Statements, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In our opinion, we have made all normal recurring adjustments necessary for a fair statement of the financial position, results of operations and cash flows for the interim periods included in these financial statements. Certain information and note disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted from these statements pursuant to SEC rules and regulations. Accordingly, the accompanying Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2017.
Reclassification	Certain reclassifications have been made to prior year’s consolidated financial statements to conform to current year presentation. Total net periodic pension cost associated with the Company’s non-union defined benefit plans that was previously reported in operating expenses in the income statement is now reported in nonoperating expenses due to the adoption of Accounting Standards Update (“ASU”) 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, discussed further below. This resulted in a $3.2 million and $6.5 million reclassification from “Salaries, wages and employee benefits” in operating expenses to “Non-union pension and postretirement benefits” in nonoperating expenses for the three and six months ended June 30, 2017, respectively. In addition, due to the adoption of ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, cash paid to a taxing authority when shares are withheld to satisfy the employer’s statutory income tax withholding obligation are now required to be classified as a financing activity. This resulted in a $2.3 million reclassification in the six months ended June 30, 2017 from “Change in other operating liabilities” in cash flows from operating activities to “Payments for tax withheld on equity-based compensation” in cash flows from financing activities in the statement of consolidated cash flows.
Revenue Recognition and Revenue-Related Reserves	Revenue Recognition and Revenue-Related Reserves The Company’s revenues are derived from the transportation services we provide through the delivery of goods over the duration of a shipment. Upon receipt of the bill of lading, the contract existence criteria is met as evidenced by a legally enforceable agreement between two parties where collectability is probable, thus creating the distinct performance obligation. The Company has elected to expense initial direct costs as incurred because the average shipment cycle is less than one week. The YRC Freight and Regional Transportation segments recognize revenue and substantially all the purchased transportation expense on a gross basis because we direct the use of the transportation service provided and remain responsible for the complete and proper shipment. Inherent within our revenue recognition practices are estimates for revenue associated with shipments in transit and future adjustments to revenue and accounts receivable for billing adjustments and collectability. For shipments in transit, we record revenue based on the percentage of service completed as of the period end and recognize delivery costs as incurred. The percentage of service completed for each shipment is based on how far along in the shipment cycle each shipment is in relation to standard transit days. Standard transit days are defined as our published service days between origin zip code and destination zip code. The total revenue earned is accumulated for all shipments in transit at a particular period end and recorded as operating revenue. Given the nature of our transportation services, future adjustments may arise which creates variability when establishing the transaction price used to recognize revenue. We have a high volume of performance obligations with similar characteristics, therefore we primarily use historical trends to arrive at estimated reserves. For rerate reserves, which are common for LTL carriers, we assign pricing to bills of lading at the time of shipment based primarily on the weight, general classification of the product, the shipping destination and individual customer discounts. This process is referred to as rating. At various points throughout our process, incorrect ratings could be identified based on many factors, including weight and commodity verifications. Although the majority of rerating occurs in the same month as the original rating, a portion occurs during the following periods. For the reserve for uncollectible accounts, we primarily use historical write-off experience but may also consider customer-specific factors, overall collection trends and economic conditions as part of our ongoing monitoring of credit. We considered the disclosure requirements for revenue disaggregation guidance in ASC Topic 606 and noted that our segments disaggregate our revenues based on geographic and time-based factors as our Regional Transportation segment carriers operate in a smaller geographic footprint and have a shorter length of haul as compared to our YRC Freight segment. No other criteria listed in the guidance or through our review process was considered to be meaningful for financial statement users. As such, we conclude that no further disaggregation of revenues is necessary. Refer to the “Business Segments” footnote to the consolidated financial statements for more details.
Newly Adopted Accounting Standards and Impact of Recently Issued Accounting Standards	Newly Adopted Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-09, Revenue from Contracts with Customers. The new standard became effective for the Company for its annual reporting period beginning January 1, 2018, recognizing the cumulative effect using a modified retrospective approach. There was no cumulative effect adjustment recorded. The Company has completed the implementation including the impacts of new expanded disclosure requirements and the impacts on the Company’s internal control over financial reporting and has included updates to our disclosures herein. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows, to clarify the guidance on how companies present restricted cash and restricted cash equivalents in the statement of cash flows. As a result, the Company no longer presents transfers between cash and cash equivalents and restricted cash in the statement of cash flows. The new standard became effective for the Company for its annual reporting period beginning January 1, 2018, and was adopted using a retrospective transition approach. The statement of consolidated cash flows has been updated to reflect the presentation of beginning and ending cash to include “Cash and cash equivalents” as well as “Restricted amounts held in escrow” and removed changes in restricted escrows as a component of investing activities. In March 2017, the FASB issued ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires companies to present the service cost component of net benefit cost in the same income statement line item as other employee compensation costs arising from services rendered during the period. All other components of net benefit cost are presented outside of any subtotal for operating income, if one is presented. The new standard was effective and implemented for the Company for its annual reporting period beginning January 1, 2018, with retrospective application. Impact of Recently Issued Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases, which requires lessees to recognize a right-to-use asset and a lease obligation for all leases. Additional qualitative and quantitative disclosures, including significant judgments made by management, will be required. The new standard will become effective for the Company for its annual reporting period beginning January 1, 2019, including interim periods within that reporting period. The Company will adopt the standard using a modified retrospective approach with the effective date of the standard as the date of initial application. Upon adoption, the Company plans to elect the package of three practical expedients which allows entities to not reassess initial direct costs, lease classification for existing or expired leases, and lease definition for existing or expired contracts as of the effective date of January 1, 2019. Additionally, the Company does not plan to elect the hindsight method practical expedient which would allow us to reassess lease terms and impairment. For leases with a term of twelve months or less, the Company plans to make an accounting policy election in which the right of use lease asset and lease liability will not be recognized on the consolidated balance sheet. The Company does not plan to separate lease and non-lease components for its revenue equipment and real property leases. Using a cross functional team, the Company has identified a software solution to measure and record right-of-use asset and liability balances and has entered a majority of the existing leases into the solution. The Company will continue to evaluate contractual lease obligations and refine our understanding of the accounting impacts and the necessary updates to our internal controls over financial reporting from the adoption of the new standard. We expect the adoption of this standard will have a material impact on the consolidated financial statements through the recognition of significant right-of-use assets and liabilities. The income statement impact continues to be evaluated. In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in response to the Tax Cuts and Jobs Act of 2017 (the “Tax Act”), to provide the option to reclassify certain tax effects out of other comprehensive income and to retained earnings. The Company elected not to apply this reclassification option as it will not have a material impact on our consolidated financial statements.

Debt and Financing (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

Our outstanding debt as of June 30, 2018 consisted of the following:



As of June 30, 2018 (in millions)	Par Value			Discount			Debt Issuance Costs			Book Value			Stated Interest Rate			Average Effective Interest Rate
Term Loan	$	586.5		$	(9.1	)	$	(7.4	)	$	570.0		10.6	%	^(a)	11.0	%
ABL Facility	—			—			—			—			N/A			N/A
Secured Second A&R CDA	26.9			—			(0.1		)	26.8			7.0-18.3%			7.9	%
Unsecured Second A&R CDA	48.2			—			(0.3		)	47.9			7.0-18.3%			7.9	%
Lease financing obligations	249.1			—			(0.6		)	248.5			8.7-18.2%			12.0	%
Total debt	$	910.7		$	(9.1	)	$	(8.4	)	$	893.2
Current maturities of Term Loan	(18.0		)	—			—			(18.0		)
Current maturities of lease financing obligations	(9.0		)	—			—			(9.0		)
Current maturities of Unsecured Second A&R CDA	$	(1.5	)	$	—		$	—		$	(1.5	)
Long-term debt	$	882.2		$	(9.1	)	$	(8.4	)	$	864.7


(a)	Variable interest rate of 1, 3 or 6-month LIBOR, with a floor of 1.0%, plus a fixed margin of 8.50%.

Schedule of Maximum Total Leverage Ratio for Remaining Test Periods [Table Text Block]

Our total maximum leverage ratio covenants are as follows:



Four Consecutive Fiscal Quarters Ending	Maximum Total Leverage Ratio	Four Consecutive Fiscal Quarters Ending	Maximum Total Leverage Ratio
June 30, 2018	3.50 to 1.00	March 31, 2020	3.00 to 1.00
September 30, 2018	3.50 to 1.00	June 30, 2020	3.00 to 1.00
December 31, 2018	3.50 to 1.00	September 30, 2020	2.75 to 1.00
March 31, 2019	3.25 to 1.00	December 31, 2020	2.75 to 1.00
June 30, 2019	3.25 to 1.00	March 31, 2021	2.75 to 1.00
September 30, 2019	3.25 to 1.00	June 30, 2021 and thereafter	2.50 to 1.00
December 31, 2019	3.00 to 1.00

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

The book value and estimated fair values of our long-term debt, including current maturities and other financial instruments, are summarized as follows:



	June 30, 2018				December 31, 2017
(in millions)	Book Value		Fair value		Book Value		Fair value
Term Loan	$	570.0	$	595.8	$	576.8	$	596.9
Lease financing obligations	248.5		248.1		254.6		257.7
Second A&R CDA	74.7		76.3		74.7		75.3
Total debt	$	893.2	$	920.2	$	906.1	$	929.9

Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Schedule of Costs of Retirement Plans

The following table presents the components of our Company-sponsored pension plan costs for the three and six months ended June 30:



	Three Months						Six Months
(in millions)	2018			2017			2018			2017
Service cost	$	0.1		$	1.3		$	0.2		$	2.6
Interest cost	10.9			12.8			21.8			25.6
Expected return on plan assets	(15.1		)	(14.8		)	(30.2		)	(29.6		)
Amortization of prior service credit	(0.1		)	—			(0.2		)	—
Amortization of prior net pension loss	3.7			3.9			7.4			7.8
Total net periodic pension cost	$	(0.5	)	$	3.2		$	(1.0	)	$	6.4

Earnings (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

Our calculations for basic and dilutive earnings per share for the three and six months ended June 30, 2018 and 2017 are as follows:



	Three Months				Six Months
(dollars in millions, except per share data, shares and stock units in thousands)	2018		2017		2018			2017
Basic and dilutive net income (loss) available to common shareholders	$	14.4	$	19.0	$	(0.2	)	$	(6.3	)

Basic weighted average shares outstanding	32,966		32,715		32,894			32,642
Effect of dilutive securities:
Unvested shares and stock units	828		607		—			—
Dilutive weighted average shares outstanding	33,794		33,322		32,894			32,642

Basic earnings (loss) per share^(a)	$	0.44	$	0.58	$	0.00		$	(0.19	)
Diluted earnings (loss) per share^(a)	$	0.43	$	0.57	$	0.00		$	(0.19	)


(a)	Earnings (loss) per share is based on unrounded figures and not the rounded figures presented.

Business Segments (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following table summarizes our operations by business segment:



(in millions)	YRC Freight		Regional Transportation		Corporate/ Eliminations			Consolidated
As of June 30, 2018
Identifiable assets	$	1,001.5	$	620.8	$	22.2		$	1,644.5
As of December 31, 2017
Identifiable assets	$	1,042.1	$	607.4	$	(64.0	)	$	1,585.5
Three Months Ended June 30, 2018
External revenue	$	827.6	$	499.0	$	(0.1	)	$	1,326.5
Operating income (loss)	$	26.8	$	29.2	$	(5.1	)	$	50.9
Six Months Ended June 30, 2018
External revenue	$	1,578.9	$	962.3	$	(0.2	)	$	2,541.0
Operating income (loss)	$	19.9	$	34.4	$	(7.7	)	$	46.6
Three Months Ended June 30, 2017
External revenue	$	789.5	$	471.2	$	(0.1	)	$	1,260.6
Operating income (loss)^(a)	$	30.9	$	25.3	$	(3.0	)	$	53.2
Six Months Ended June 30, 2017
External revenue	$	1,518.4	$	913.0	$	(0.2	)	$	2,431.2
Operating income (loss)^(a)	$	23.4	$	37.5	$	(7.4	)	$	53.5


(a)	Due to the adoption of ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,

“Operating income (loss)” for prior year has been updated to reflect the reclassification of pension expense.

Description of Business (Details)	6 Months Ended
Description of Business (Details)	Jun. 30, 2018
Workforce Subject to Collective Bargaining Arrangements [Member] \| Labor Force Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of workforce subject to collective bargaining agreements	79.00%

Principles of Consolidation (Reclassification Out of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reclassifications out of Accumulated Comprehensive loss [Line Items]
Non-union pension and postretirement benefits	$ (0.4)	$ 3.2	$ (0.9)	$ 6.5
Change in other operating liabilities			(40.5)	(14.9)
Payments for tax withheld on equity-based compensation			1.6	2.3
Accounting Standards Update 2017-07 [Member]
Reclassifications out of Accumulated Comprehensive loss [Line Items]
Non-union pension and postretirement benefits		3.2		6.5
Salaries, wages and employee benefits		3.2		6.5
Accounting Standards Update 2016-09 [Member]
Reclassifications out of Accumulated Comprehensive loss [Line Items]
Change in other operating liabilities				(2.3)
Payments for tax withheld on equity-based compensation				2.3
AOCI Attributable to Parent [Member]
Reclassifications out of Accumulated Comprehensive loss [Line Items]
Reclassification adjustment from AOCI, after tax	$ 3.7	$ 3.9	$ 7.4	$ 7.8

Debt and Financing (Details) $ in Millions	6 Months Ended	12 Months Ended
Debt and Financing (Details) $ in Millions	Jun. 30, 2018 USD ($)	Mar. 31, 2018	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 910.7
Premium/(Discount), Debt	(9.1)
Debt Issuance Cost	(8.4)
Book Value	893.2
Book Value, Current Maturities	(28.5)		$ (30.6)
Par Value, Excluding Current Maturities	882.2
Premium (Discount)	(9.1)
Book Value, Excluding Current Maturities	864.7		875.5
Carrying Amount [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	893.2		906.1
Fair Value [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	920.2		929.9
Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross	586.5
Premium/(Discount), Debt	(9.1)
Debt Issuance Cost	(7.4)
Book Value	570.0
Debt Instrument, Gross, Current Maturities	(18.0)
Premium/(Discount), Current Maturities	0.0
Deferred Finance Costs, Current, Net	0.0
Book Value, Current Maturities	$ (18.0)
Stated Interest Rate	10.59%
Average Effective Interest Rate	11.00%
Term Loan \| Carrying Amount [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	$ 570.0		576.8
Term Loan \| Fair Value [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	595.8		596.9
Line of Credit [Member] \| 2014 ABL Facility Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	0.0
Premium/(Discount), Debt	0.0
Debt Issuance Cost	0.0
Book Value	0.0
Line of credit facility, total cash and availability	74.7
Secured Second A&R CDA [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	26.9
Premium/(Discount), Debt	0.0
Debt Issuance Cost	(0.1)
Book Value	$ 26.8
Average Effective Interest Rate	7.90%
Unsecured Second A&R CD [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 48.2
Premium/(Discount), Debt	0.0
Debt Issuance Cost	(0.3)
Book Value	47.9
Debt Instrument, Gross, Current Maturities	(1.5)
Premium/(Discount), Current Maturities	0.0
Deferred Finance Costs, Current, Net	0.0
Book Value, Current Maturities	$ (1.5)
Average Effective Interest Rate	7.90%
Lease Financing Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 249.1
Premium/(Discount), Debt	0.0
Debt Issuance Cost	(0.6)
Book Value	248.5
Debt Instrument, Gross, Current Maturities	(9.0)
Premium/(Discount), Current Maturities	0.0
Deferred Finance Costs, Current, Net	0.0
Book Value, Current Maturities	$ (9.0)
Average Effective Interest Rate	12.00%
Lease Financing Obligations [Member] \| Carrying Amount [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	$ 248.5		254.6
Lease Financing Obligations [Member] \| Fair Value [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	248.1		257.7
Letter of Credit [Member] \| 2014 ABL Facility Credit Agreement [Member]
Debt Instrument [Line Items]
Letters of credit outstanding, amount	351.5
Other Debt Obligations [Member] \| Carrying Amount [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	74.7		74.7
Other Debt Obligations [Member] \| Fair Value [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	76.3		$ 75.3
2014 ABL Facility Credit Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity (Managed Accessibility)	32.1
2014 ABL Facility Credit Agreement [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, total cash and availability	$ 190.8
Term Loan Agreement
Debt Instrument [Line Items]
Maximum Total Leverage Ratio, June 30, 2018	3.5
Maximum Total Leverage Ratio, September 30, 2018	3.5
Maximum Total Leverage Ratio, December 31, 2018	3.50
Maximum Total Leverage Ratio, March 31, 2019	3.25
Maximum Total Leverage Ratio, June 30, 2019	3.25
Maximum Total Leverage Ratio, September 30, 2019	3.25
Maximum Total Leverage Ratio, December 31, 2019	3.00
Maximum Total Leverage Ratio, March 31, 2020	3.00
Maximum Total Leverage Ratio, June 30, 2020	3.00
Maximum Total Leverage Ratio, September 30, 2020	2.75
Maximum Total Leverage Ratio, December 31, 2020	2.75
Maximum Total Leverage Ratio, March 31, 2021	2.75
Maximum Total Leverage Ratio, June 30, 2021 and thereafter	2.50
Total leverage ratio		3.18
London Interbank Offered Rate (LIBOR) \| Term Loan
Debt Instrument [Line Items]
Floor interest rate	1.00%
Basis spread on variable rate	8.50%
Minimum [Member] \| Secured Second A&R CDA [Member]
Debt Instrument [Line Items]
Stated Interest Rate	7.00%
Minimum [Member] \| Unsecured Second A&R CD [Member]
Debt Instrument [Line Items]
Stated Interest Rate	7.00%
Minimum [Member] \| Lease Financing Obligations [Member]
Debt Instrument [Line Items]
Stated Interest Rate	8.70%
Maximum [Member] \| Secured Second A&R CDA [Member]
Debt Instrument [Line Items]
Stated Interest Rate	18.30%
Maximum [Member] \| Unsecured Second A&R CD [Member]
Debt Instrument [Line Items]
Stated Interest Rate	18.30%
Maximum [Member] \| Lease Financing Obligations [Member]
Debt Instrument [Line Items]
Stated Interest Rate	18.20%

Employee Benefits (Details) - Other Postretirement Benefit Plans, Defined Benefit [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.1	$ 1.3	$ 0.2	$ 2.6
Interest cost	10.9	12.8	21.8	25.6
Expected return on plan assets	(15.1)	(14.8)	(30.2)	(29.6)
Amortization of prior service credit	(0.1)	0.0	(0.2)	0.0
Amortization of net pension loss	3.7	3.9	7.4	7.8
Total periodic pension cost	(0.5)	$ 3.2	(1.0)	$ 6.4
Expected future benefit payments, remainder of the year	$ 15.4		15.4
Contributions by employer			$ 2.3

Income Taxes (Details)	3 Months Ended		6 Months Ended
Income Taxes (Details)	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Effective tax rate	41.90%	15.90%	92.60%	7.40%

Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic and dilutive net income (loss) available to common shareholders	$ 14.4	$ 19.0	$ (0.2)	$ (6.3)
Basic weighted average shares outstanding (in shares)	32,966	32,715	32,894	32,642
Dilutive weighted average shares outstanding (in shares)	33,794	33,322	32,894	32,642
Income (loss) Per Share – Basic (in dollars per share)	$ 0.44	$ 0.58	$ 0.00	$ (0.19)
Income (loss) Per Share – Diluted (in dollars per share)	$ 0.43	$ 0.57	$ 0.00	$ (0.19)
Stock Compensation Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Unvested shares and stock units (in shares)	828	607	0	0
Antidillutive options and shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share			57	350

Business Segments (Details) $ in Millions	3 Months Ended		6 Months Ended
Business Segments (Details) $ in Millions	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment			2
Identifiable assets	$ 1,644.5		$ 1,644.5		$ 1,585.5
External revenue	1,326.5	$ 1,260.6	2,541.0	$ 2,431.2
Operating income (loss)	50.9	53.2	46.6	53.5
Operating Segments \| YRC Freight
Segment Reporting Information [Line Items]
Identifiable assets	1,001.5		1,001.5		1,042.1
External revenue	827.6	789.5	1,578.9	1,518.4
Operating income (loss)	26.8	30.9	19.9	23.4
Operating Segments \| Regional Transportation
Segment Reporting Information [Line Items]
Identifiable assets	620.8		620.8		607.4
External revenue	499.0	471.2	962.3	913.0
Operating income (loss)	29.2	25.3	34.4	37.5
Corporate/ Eliminations
Segment Reporting Information [Line Items]
Identifiable assets	22.2		22.2		$ (64.0)
External revenue	(0.1)	(0.1)	(0.2)	(0.2)
Operating income (loss)	$ (5.1)	$ (3.0)	$ (7.7)	$ (7.4)

Commitments, Contingencies and Uncertainties (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Operating Leased Assets [Line Items]
Operating leases, future minimum payments due	$ 411.5
Revenue Equipment [Member]
Operating Leased Assets [Line Items]
Operating leases, future minimum payments due	$ 108.9
Operating lease term	4 years