CDW (CDW) 10-Q12 Nov 142014 Q3 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information Document	9 Months Ended
Document and Entity Information Document	Sep. 30, 2014	Nov. 07, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'CDW Corp	'
Entity Central Index Key	'0001402057	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	172,211,884

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current Assets:	'	'
Cash and cash equivalents	$357.80	$188.10
Accounts receivable, net of allowance for doubtful accounts	1,473.20	1,451
Merchandise inventory	423.5	382
Miscellaneous receivables	175.4	146.3
Prepaid expenses and other	86.3	46.1
Total current assets	2,516.20	2,213.50
Property and equipment, net	131.7	131.1
Goodwill	2,218.60	2,220.30
Other intangible assets, net	1,207	1,328
Deferred financing costs, net	31.8	30.1
Other assets	2.1	1.6
Total assets	6,107.40	5,924.60
Current liabilities:	'	'
Accounts payable-trade	777.9	662.8
Accounts payable-inventory financing	299.7	256.6
Current maturities of long-term debt	15.4	45.4
Deferred revenue	102.3	94.8
Accrued expenses:	'	'
Compensation	103.9	112.2
Interest	50.2	31.8
Sales taxes	24.8	29.2
Advertising	41.5	33.2
Income taxes	0.2	6.3
Other	111.7	130.3
Total current liabilities	1,527.60	1,402.60
Long-term liabilities:	'	'
Debt	3,146.30	3,205.80
Deferred income taxes	495.4	563.5
Other liabilities	44.1	41
Total long-term liabilities	3,685.80	3,810.30
Commitments and contingencies	'	'
Shareholders' equity (deficit):	'	'
Preferred Shares	0	0
Common shares	1.7	1.7
Paid-in capital	2,704.60	2,688.10
Accumulated deficit	-1,800.60	-1,971.80
Accumulated other comprehensive loss	-11.7	-6.3
Total shareholders' equity (deficit)	894	711.7
Total liabilities and shareholders' equity (deficit)	$6,107.40	$5,924.60

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets Parenthetical (Parentheticals) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Allowance for doubtful accounts	$5.70	$5.40
Preferred shares, par value	$0.01	$0.01
Preferred shares, authorized	100	100
Preferred shares, issued	0	0
Preferred shares, outstanding	0	0
Common shares, par value	$0.01	$0.01
Common shares, shares authorized	1,000	1,000
Common shares, shares issued	172.1	172
Common shares, shares outstanding	172	172

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Net Sales	$3,266.10	$2,864.30	$9,024.40	$8,055.30
Cost of sales	2,758.80	2,405.90	7,595	6,743.30
Gross profit	507.3	458.4	1,429.40	1,312
Selling and administrative expenses	285.4	332.4	820.2	850.3
Advertising expense	37.2	33.1	100.5	95.1
Income from operations	184.7	92.9	508.7	366.6
Interest Income (Expense), Net	50.1	56.2	148.7	198.6
Net loss on extinguishments of long-term debt	-45.8	-41.3	-53.8	-55.5
Other income (loss), net	0.7	-0.2	1.4	0.4
Income (loss) before income taxes	89.5	-4.8	307.6	112.9
Income tax (expense) benefit	-33.9	2.6	-114.5	-40.1
Net income (loss)	$55.60	($2.20)	$193.10	$72.80
Income Per Share - Basic	$0.33	($0.01)	$1.13	$0.48
Income Per Share - Diluted	$0.32	($0.01)	$1.12	$0.47
Weighted Average Shares - Basic	170.9	166.8	170.2	152.5
Weighted Average Shares - Diluted	173	166.8	172.7	154.3
Common Stock, Dividends, Per Share, Cash Paid	$0.04	$0	$0.13	$0

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income (loss)	$55.60	($2.20)	$193.10	$72.80
Foreign currency translation adjustment	-5.2	2	-5.4	-3.7
Other comprehensive loss, net of tax	-5.2	2	-5.4	-3.7
Comprehensive income (loss)	$50.40	($0.20)	$187.70	$69.10

Consolidated_Statement_Of_Shar

Consolidated Statement Of Shareholders' Equity (Deficit) (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Millions, unless otherwise specified	Total	Preferred Stock [Member]	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2013	$711.70	$0	$1.70	$2,688.10	($1,971.80)	($6.30)
Preferred shares, issued, beginning balance at Dec. 31, 2013	0	0	'	'	'	'
Common shares, shares issued, beginning balance at Dec. 31, 2013	172	'	172	'	'	'
Shareholders' Equity (Deficit) [Roll Forward]	'	'	'	'	'	'
Equity-based compensation expense	11.5	0	0	11.5	0	0
Stock Option Exercises	1.1	0	0	1.1	0	0
Dividends Declared	-21.9	0	0	0	-21.9	0
Net income (loss)	193.1	0	0	0	193.1	0
Foreign currency translation adjustment	-5.4	0	0	0	0	-5.4
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	0.2	0	0	0.2	0	0
Stock Issued During Period, Shares, Employee Stock Purchase Plans	'	'	0.1	'	'	'
Stock Issued During Period, Value, Employee Stock Purchase Plan	3.7	0	0	3.7	0	0
Balance at Sep. 30, 2014	$894	$0	$1.70	$2,704.60	($1,800.60)	($11.70)
Preferred shares, issued, ending balance at Sep. 30, 2014	0	0	'	'	'	'
Common shares, shares issued, ending balance at Sep. 30, 2014	172.1	'	172.1	'	'	'

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income (loss)	$193.10	$72.80
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	155.9	156.3
Equity-based compensation expense	11.5	44.3
Deferred income taxes	-67.2	-21.3
Provision for Doubtful Accounts	0.3	0
Amortization of deferred financing costs, debt premium and debt discount, net	4.8	7.1
Net loss on extinguishments of long-term debt	53.8	55.5
Other	0.1	0.1
Changes in assets and liabilities:	'	'
Accounts receivable	-26.2	-27.9
Merchandise inventory	-41.7	-39.2
Other assets	-69.7	-72.2
Increase (Decrease) in Accounts Payable, Trade	115.1	154.8
Other current liabilities	17.4	47
Long-term liabilities	3.3	-6.5
Net cash provided by operating activities	350.5	370.8
Cash flows from investing activities:	'	'
Capital expenditures	-34.4	-30.5
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	-20.9	0
Interest rate cap agreements premiums paid	-0.7	0
Net cash used in investing activities	-56	-30.5
Cash flows from financing activities:	'	'
Proceeds from Lines of Credit	0	63
Repayments of Lines of Credit	0	-63
Repayments of long-term debt	-11.6	-47.2
Proceeds from Issuance of Long-term Debt	600	1,535.20
Payments to extinguish long-term debt	-723.9	-1,885.90
Payments of Financing Costs	-14.4	-6
Net change in accounts payable-inventory financing	43.1	-24
Proceeds from Issuance of Common Stock	0	424.7
Proceeds from stock option exercises	1.1	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	3.7	0
Dividends paid	-21.9	0
Excess Tax Benefit from Share-based Compensation, Financing Activities	0.2	0
Payments Related to Tax Withholding for Share-based Compensation	0	-24.1
Repurchase of common shares	0	-0.1
Net cash used in financing activities	-123.7	-27.4
Effect of exchange rate changes on cash and cash equivalents	-1.1	-0.6
Net increase (decrease) in cash and cash equivalents	169.7	312.3
Cash and cash equivalents - beginning of period	188.1	37.9
Cash and cash equivalents - end of period	357.8	350.2
Supplementary disclosure of cash flow information:	'	'
Interest paid	-127.2	-169.5
Taxes paid, net	($189.90)	($64.30)

Description_Of_Business_And_Su

Description Of Business And Summary Of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Description of Business and Summary of Significant Accounting Policies [Abstract]	'
Description Of Business And Summary Of Significant Accounting Policies	'
	Description of Business and Summary of Significant Accounting Policies
	Description of Business
	CDW is a Fortune 500 company and a leading provider of integrated information technology (“IT”) solutions to small, medium and large business, government, education and healthcare customers in the U.S. and Canada. The Company's offerings range from discrete hardware and software products to integrated IT solutions such as mobility, security, data center optimization, cloud computing, virtualization and collaboration.
	Basis of Presentation
	The accompanying unaudited interim consolidated financial statements as of September 30, 2014 and for the three and nine months ended September 30, 2014 and 2013 (the "consolidated financial statements") have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the "SEC") for interim financial statements. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been condensed or omitted pursuant to such rules and regulations. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 (the "December 31, 2013 financial statements"). The significant accounting policies used in preparing these consolidated financial statements were applied on a basis consistent with those reflected in the December 31, 2013 financial statements. In the opinion of management, the consolidated financial statements contain all adjustments (consisting of a normal, recurring nature) necessary to present fairly the Company's financial position, results of operations, comprehensive income, cash flows and changes in shareholders' equity as of the dates and for the periods indicated. The unaudited consolidated statements of operations for such interim periods reported are not necessarily indicative of results for the full year.
	CDW Corporation ("Parent") was previously owned directly by CDW Holdings LLC ("CDW Holdings"), a company controlled by investment funds affiliated with Madison Dearborn Partners, LLC ("Madison Dearborn") and Providence Equity Partners, L.L.C. ("Providence Equity," and together with Madison Dearborn, the "Sponsors"), certain other co-investors and certain members of CDW management. On July 2, 2013, Parent completed an initial public offering (the "IPO") of its common stock. In connection with the IPO, CDW Holdings distributed all of its shares of Parent's common stock to its members in June 2013 in accordance with the members' respective membership interests and was subsequently dissolved in August 2013. See Note 6 for additional discussion of the IPO.
	Parent has two 100% owned subsidiaries, CDW LLC and CDW Finance Corporation. CDW LLC is an Illinois limited liability company that, together with its 100% owned subsidiaries, holds all material assets and conducts all business activities and operations of the Company. CDW Finance Corporation is a Delaware corporation formed for the sole purpose of acting as co-issuer of certain debt obligations as described in Note 12 and does not hold any material assets or engage in any business activities or operations.
	Throughout these notes, the terms the “Company” and “CDW” refer to Parent and its 100% owned subsidiaries.
	Principles of Consolidation
	The accompanying consolidated financial statements include the accounts of Parent and its 100% owned subsidiaries. All intercompany transactions and accounts are eliminated in consolidation.
	Use of Estimates
	The preparation of consolidated financial statements in accordance with GAAP requires management to make use of certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. The Company bases its estimates on historical experience and on various other assumptions that management believes are reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
	The notes to the consolidated financial statements contained in the December 31, 2013 financial statements include an additional discussion of the significant accounting policies and estimates used in the preparation of the Company's consolidated financial statements. There have been no material changes to the Company's significant accounting policies and estimates during the nine months ended September 30, 2014.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
Recent Accounting Pronouncements	Sep. 30, 2014
Recent Accounting Pronouncements [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	Revenue Recognition
	In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") 2014-09, which clarifies the standard for recognizing revenue from contracts with customers. The standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes the most current revenue recognition guidance. The standard is effective for the Company for the first quarter of 2017 and early adoption is not permitted. The standard allows for either a full retrospective approach or a modified retrospective approach. The Company is currently evaluating the impact that the standard will have on its consolidated financial position, results of operations and cash flows.
	Stock Compensation-Performance Share Awards
	In June 2014, the FASB issued ASU 2014-12, which amended the standard on how to account for share-based payments when the terms of an award provide that a performance target could be achieved after the requisite service period. Under the amended standard, a performance target that could be achieved after the requisite service period is required to be treated as a performance condition that affects the vesting of the award and should not be reflected in estimating the fair value of the award at the grant date. The amendment is effective for the first quarter of 2016 with early adoption permitted. The Company already accounts for performance shares utilizing the method outlined by ASU 2014-12 and is not impacted by the new standard.
	Going Concern
	In August 2014, the FASB issued ASU 2014-15, which sets forth guidance regarding management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern and provide related footnote disclosures. This standard defines the term “substantial doubt,” requires management to perform an evaluation every reporting period, and provides principles for considering the mitigating effects of management’s plans. The standard is effective for the Company for the fourth quarter of 2016 with early adoption permitted. The Company currently does not expect that this standard will have a material impact on its financial statements.

Inventory_Financing_Agreements

Inventory Financing Agreements	9 Months Ended
	Sep. 30, 2014
Inventory Financing Agreements [Abstract]	'
Inventory Financing Agreements	'
	Inventory Financing Agreements
	The Company has entered into agreements with certain financial intermediaries to facilitate the purchase of inventory from various suppliers under certain terms and conditions, as described below. These amounts are classified separately as accounts payable-inventory financing on the accompanying consolidated balance sheets. The Company does not incur any interest expense associated with these agreements as balances are paid when they are due.
	The following table presents the amounts included in accounts payable-inventory financing:


	(in millions)	30-Sep-14		31-Dec-13
	Revolving Loan inventory financing agreement	$	298.8	$	256.1

	Other inventory financing agreements	0.9		0.5

	Accounts payable-inventory financing	$	299.7	$	256.6

	As described in Note 4, in June 2014, the Company entered into a new senior secured asset-based revolving credit facility, which incorporates the previous inventory floorplan sub-facility and, among other changes, removes the $400.0 million limit on the size of the floorplan sub-facility. In connection with the floorplan sub-facility, the Company maintains an inventory financing agreement on an unsecured basis with a financial intermediary to facilitate the purchase of inventory from a certain vendor (the “Revolving Loan inventory financing agreement”). Amounts outstanding under the Revolving Loan inventory financing agreement are unsecured and non-interest bearing.
	The Company also maintains other inventory financing agreements with financial intermediaries to facilitate the purchase of inventory from certain vendors. At September 30, 2014 and December 31, 2013, amounts owed under other inventory financing agreements of $0.9 million and $0.5 million, respectively, were collateralized by the inventory purchased under these financing agreements and a second lien on the related accounts receivable.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2014
Long-term Debt, Unclassified [Abstract]	'
Long-Term Debt	'
	Long-Term Debt
	Long-term debt was as follows:


	(dollars in millions)	Interest		September 30,			December 31,
		Rate (1)		2014			2013
	Senior secured asset-based revolving credit facility	—	%	$	—		$	—

	Senior secured term loan facility	3.25	%	1,517.40			1,528.90

	Unamortized discount on senior secured term loan facility			(3.9		)	(4.4		)
	Senior secured notes due 2018	—	%	—			325

	Senior notes due 2019	8.5	%	1,045.30			1,305.00

	Unamortized premium on senior notes due 2019			2.9			4.2

	Senior notes due 2022	6	%	600			—

	Senior subordinated notes due 2017	—	%	—			92.5

	Total long-term debt			3,161.70			3,251.20

	Less current maturities of long-term debt			(15.4		)	(45.4		)
	Long-term debt, excluding current maturities			$	3,146.30		$	3,205.80

	(1)Interest rate at September 30, 2014.
	At September 30, 2014, the Company was in compliance with the covenants under its various credit agreements as described below.
	Senior Secured Asset-Based Revolving Credit Facility (“Revolving Loan”)
	At September 30, 2014, the Company had no outstanding borrowings under the Revolving Loan, $2.2 million of undrawn letters of credit and $292.5 million reserved related to the floorplan sub-facility.
	On June 6, 2014, the Company entered into the Revolving Loan, a new five-year $1,250.0 million senior secured asset-based revolving credit facility, with the facility being available to the Company for borrowings, issuance of letters of credit and floorplan financing for certain vendor products. The Revolving Loan matures on June 6, 2019, subject to an acceleration provision discussed below. The Revolving Loan replaces the Company’s previous revolving loan credit facility that was to mature on June 24, 2016. The Revolving Loan (i) increases the overall revolving credit facility capacity available to the Company from $900.0 million to $1,250.0 million, (ii) increases the maximum aggregate amount of increases that may be made to the revolving credit facility from $200.0 million to $300.0 million, (iii) maintains a maturity acceleration provision based upon excess cash availability whereby the Revolving Loan may mature 45 days prior to the final maturity of any then outstanding senior debt if excess cash availability does not exceed the outstanding borrowings of the subject maturing debt at the time of the test plus $150.0 million, (iv) decreases the fee on the unused portion of the revolving credit facility from either 37.5 or 50 basis points, depending on the amount of utilization, to 25 basis points, (v) decreases the applicable interest rate margin by 50 basis points, and (vi) amends the existing inventory floorplan sub-facility as discussed below. In connection with the termination of the previous facility, the Company recorded a loss on extinguishment of long-term debt of $0.4 million in the consolidated statement of operations for the nine months ended September 30, 2014, representing a write-off of a portion of unamortized deferred financing costs. Fees of $6.4 million related to the Revolving Loan were capitalized as deferred financing costs and are being amortized over the five-year term of the facility on a straight-line basis.
	The Revolving Loan incorporates the previous inventory floorplan sub-facility and related Revolving Loan inventory financing agreement while removing the previous $400.0 million limit on the size of the floorplan sub-facility and the in-transit reserve of 15% of open orders. At September 30, 2014, the financial intermediary reported an outstanding balance of $292.5 million under the Revolving Loan inventory financing agreement. The amount included on the Company's consolidated balance sheet as of September 30, 2014 as accounts payable-inventory financing related to the Revolving Loan inventory financing agreement of $298.8 million includes a $6.3 million accrual for amounts in transit.
	Borrowings under the Revolving Loan bear interest at a variable interest rate plus an applicable margin. The interest rate margin is based on one of two indices, either (i) LIBOR, or (ii) the Alternate Base Rate (“ABR”) with the ABR being the greater of (a) the prime rate, (b) the federal funds effective rate plus 50 basis points or (c) the one-month LIBOR plus 1.00%. The applicable margin varies (1.50% to 2.00% for LIBOR borrowings and 0.50% to 1.00% for ABR borrowings) depending upon average daily excess cash availability under the agreement evidencing the Revolving Loan and is subject to a reduction of 0.25% if, and for as long as, CDW LLC's corporate credit rating from Standard & Poor’s Rating Services is BB or better and the CDW LLC's corporate family rating from Moody’s Investors Service, Inc. is Ba3 or better (in each case with stable or better outlook).

	Under the new Revolving Loan, the Company is permitted to borrow an aggregate amount of $1,250.0 million; however, its ability to borrow under the Revolving Loan is limited by a borrowing base. The borrowing base is (a) the sum of the products of the applicable advance rates on eligible accounts receivable and on eligible inventory as defined in the agreement less (b) any reserves. At September 30, 2014, the borrowing base was $1,408.1 million based on the amount of eligible inventory and accounts receivable balances as of August 30, 2014. The Company could have borrowed up to an additional $955.3 million under the Revolving Loan at September 30, 2014.
	The ability to borrow under the Revolving Loan also remains limited by a minimum liquidity condition which provides that, if excess cash availability is less than the lesser of (i) $125.0 million and (ii) the greater of (A) 10% of the borrowing base and (B) $100.0 million, the lenders are not required to lend any additional amounts under the Revolving Loan unless the consolidated fixed charge coverage ratio (as described in the agreement evidencing the Revolving Loan) is at least 1.00 to 1.00.
	Senior Secured Term Loan Facility
	On April 29, 2013, the Company entered into a seven-year, $1,350.0 million aggregate principal amount senior secured term loan facility (the "Term Loan"). The Term Loan was issued at a price that was 99.75% of par, which resulted in a discount of $3.4 million. Substantially all of the proceeds from the Term Loan were used to repay the $1,299.5 million outstanding aggregate principal amount of the prior senior secured term loan facility (the "Prior Term Loan Facility"). In connection with this refinancing, the Company recorded a loss on extinguishment of long-term debt of $10.3 million in the consolidated statement of operations for the nine months ended September 30, 2013. This loss represented a write-off of the remaining unamortized deferred financing costs related to the Prior Term Loan Facility.
	On July 31, 2013, the Company borrowed an additional $190.0 million aggregate principal amount under the Term Loan at a price that was 99.25% of par, which resulted in a discount of $1.4 million. Such proceeds were used to redeem a portion of outstanding Senior Subordinated Notes. The discounts are reported on the consolidated balance sheets as a reduction to the face amount of the Term Loan and are being amortized to interest expense over the term of the related debt. Fees of $6.1 million related to the Term Loan were capitalized as deferred financing costs and are being amortized over the term of the facility using the effective interest method.
	The Company is required to pay quarterly principal installments equal to 0.25% of the original principal amount of the Term Loan, with the remaining principal amount payable on the maturity date of April 29, 2020. The quarterly principal installment payments commenced during the quarter ended June 30, 2013. At September 30, 2014, the outstanding principal amount of the Term Loan was $1,517.4 million, excluding $3.9 million in unamortized discount.
	Borrowings under the Term Loan bear interest at either (a) the alternate base rate ("ABR") plus a margin or (b) LIBOR plus a margin; provided that for the purposes of the Term Loan, LIBOR shall not be less than 1.00% per annum at any time ("LIBOR Floor"). The margin is based upon a net leverage ratio as defined in the agreement governing the Term Loan, ranging from 1.25% to 1.50% for ABR borrowings and 2.25% to 2.50% for LIBOR borrowings. The total net leverage ratio was 3.2 at September 30, 2014. An interest rate of 3.25%, LIBOR Floor plus a 2.25% margin, was in effect during the three-month period ended September 30, 2014.
	In order to manage the risk associated with changes in interest rates on borrowings under the Term Loan, the Company has entered into interest rate cap agreements. Prior to September 2014, the Company had ten interest rate cap agreements in effect through January 14, 2015 with a combined notional amount of $1,150.0 million. Of the total $1,150.0 million notional amount, $500.0 million entitle the Company to payments from the counterparty of the amount, if any, by which three-month LIBOR exceeds 3.5% during the agreement period. The remaining interest rate cap agreements with a notional amount of $650.0 million entitle the Company to payments from the counterparty of the amount, if any, by which the three-month LIBOR exceeds 1.5% during the agreement period. The fair value of these interest rate cap agreements was zero at both September 30, 2014 and December 31, 2013.
	In September 2014, the Company entered into two additional interest rate cap agreements with a combined notional amount of $250.0 million. Under these agreements, the Company made premium payments totaling $0.7 million to the counterparties in exchange for the right to receive payments equal to the amount, if any, by which three-month LIBOR exceeds 2.0% during the agreement period. These interest rate cap agreements are effective from January 14, 2015 through January 14, 2017. The fair value of these interest rate cap agreements was $0.6 million at September 30, 2014.
	The Company's interest rate cap agreements have not been designated as cash flow hedges of interest rate risk for GAAP accounting purposes. Instead, the interest rate cap agreements are recorded at fair value on the Company’s consolidated balance sheet each period, with changes in fair value recorded directly to interest expense in the Company’s consolidated statements of operations. The fair value of the Company’s interest rate cap agreements is classified as Level 2 in the fair value hierarchy. The valuation of the interest rate cap agreements is derived by using a discounted cash flow analysis on the expected cash receipts that would occur if variable interest rates rise above the strike rates of the caps. This analysis reflects the contractual terms of the interest rate cap agreements, including the period to maturity, and uses observable market-based inputs, including LIBOR curves and implied volatilities. The Company also incorporates credit valuation adjustments to appropriately reflect the respective counterparty’s nonperformance risk in the fair value measurements which are insignificant. The counterparty credit spreads are based on publicly available credit information obtained from a third party credit data provider.
	On January 30, 2013, the Company made an optional prepayment of $40.0 million aggregate principal amount outstanding under the Prior Term Loan Facility. The optional prepayment satisfied the excess cash flow payment provision of the Prior Term Loan Facility with respect to the year ended December 31, 2012.
	See Note 13 for a description of the interest rate cap agreements entered into during the fourth quarter of 2014.
	8.0% Senior Secured Notes due 2018 (“Senior Secured Notes”)
	As of September 30, 2014, there were no outstanding Senior Secured Notes.
	On August 5, 2014, the proceeds from the issuance of the 2022 Senior Notes discussed below, along with cash on hand, were deposited with the trustee to redeem all of the remaining $325.0 million aggregate principal amount of the Senior Secured Notes at a redemption price of 106.061% of the principal amount redeemed, plus accrued and unpaid interest through the date of redemption. On the same date, the indenture governing the Senior Secured Notes was satisfied and discharged. The redemption date was September 5, 2014. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $23.7 million in the consolidated statement of operations for the three and nine months ended September 30, 2014, which was comprised of $4.0 million for the write-off of the unamortized deferred financing fees, a redemption premium of $13.0 million and a make-whole interest payment of $6.7 million.
	On July 2, 2013, the Company used a portion of the net proceeds from the IPO to redeem $175.0 million aggregate principal amount of the Senior Secured Notes. The redemption price of the Senior Secured Notes was 108.0% of the principal amount redeemed, plus $0.7 million of accrued and unpaid interest to the date of redemption. The Company used cash on hand to pay such accrued and unpaid interest. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $16.7 million in the consolidated statement of operations for the three and nine months ended September 30, 2013. This loss represented $14.0 million in redemption premium and $2.7 million for the write-off of a portion of the remaining deferred financing costs related to the Senior Secured Notes.
	8.5% Senior Notes due 2019 (“2019 Senior Notes”)
	At September 30, 2014, the outstanding principal amount of 2019 Senior Notes was $1,045.3 million, excluding $2.9 million in unamortized premium. The 2019 Senior Notes mature on April 1, 2019.
	On August 5, 2014, the proceeds from the issuance of the 2022 Senior Notes discussed below, along with cash on hand, were deposited with the trustee to redeem $234.7 million aggregate principal amount of the 2019 Senior Notes at a redemption price of 108.764% of the principal amount redeemed, plus accrued and unpaid interest through the date of redemption. The redemption date was September 5, 2014. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $22.1 million in the consolidated statement of operations for the three and nine months ended September 30, 2014, which was comprised of $2.2 million for the write-off of a portion of the unamortized deferred financing fees, a redemption premium of $10.0 million, and a make-whole interest payment of $10.6 million, partially offset by $0.7 million for the write-off of a portion of the unamortized premium.
	On March 20, 2014, the Company repurchased and subsequently canceled $25.0 million aggregate principal amount of the 2019 Senior Notes from an affiliate of Providence Equity in a privately negotiated transaction on an arms' length basis at a price of 109.75% of the principal amount. Cash on hand was used to fund the repurchase of $25.0 million aggregate principal amount, $2.4 million of repurchase premium and $1.0 million in accrued and unpaid interest to the date of repurchase. In connection with this repurchase, the Company recorded a loss on extinguishment of long-term debt of $2.7 million in the Company's consolidated statement of operations for the nine months ended September 30, 2014. This loss represented $2.4 million in repurchase premium and $0.3 million for the write-off of a portion of the unamortized deferred financing costs related to the 2019 Senior Notes.
	6.0% Senior Notes due 2022 ("2022 Senior Notes")
	On August 5, 2014, CDW LLC and CDW Finance Corporation, as co-issuers, completed the issuance of $600.0 million aggregate principal amount of 2022 Senior Notes. Fees of $8.0 million related to the 2022 Senior Notes were capitalized as deferred financing costs and are being amortized over the term of the notes on a straight-line basis. The 2022 Senior Notes will mature on August 15, 2022.
	CDW LLC and CDW Finance Corporation are the co-issuers of the 2022 Senior Notes and the obligations under the notes are guaranteed by Parent and each of CDW LLC's direct and indirect, wholly owned, domestic subsidiaries. The 2022 Senior Notes indenture contains negative covenants that, among other things, place restrictions and limitations on the ability of Parent and each of CDW LLC's direct and indirect, 100% owned, domestic subsidiaries to enter into sale and lease-back transactions, incur additional secured indebtedness, and create liens. The indenture governing the 2022 Senior Notes does not contain any financial covenants.
	12.535% Senior Subordinated Exchange Notes due 2017 (“Senior Subordinated Notes”)
	At September 30, 2014, there were no outstanding Senior Subordinated Notes due 2017.
	On May 9, 2014, the Company redeemed all of the remaining $42.5 million aggregate principal amount of Senior Subordinated Notes at a redemption price that was 104.178% of the principal amount redeemed. Cash on hand was used to fund the redemption of $42.5 million aggregate principal amount, $1.8 million in redemption premium and $0.4 million in accrued and unpaid interest to the date of redemption. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $2.2 million in the consolidated statement of operations for the nine months ended September 30, 2014. This loss represented $1.8 million in redemption premium and $0.4 million for the write-off of the remaining deferred financing costs related to the Senior Subordinated Notes.
	On January 22, 2014 and February 21, 2014, the Company redeemed $30.0 million and $20.0 million aggregate principal amounts of Senior Subordinated Notes, respectively, at redemption prices that were 104.178% of the principal amounts redeemed. Cash on hand was used to fund the redemptions of $50.0 million aggregate principal amount, $2.1 million in redemption premiums and $1.9 million in aggregate accrued and unpaid interest to the dates of redemption. In connection with these redemptions, the Company recorded a loss on extinguishment of long-term debt of $2.7 million in the consolidated statement of operations for the nine months ended September 30, 2014. This loss represented $2.1 million in redemption premiums and $0.6 million for the write-off of a portion of the remaining deferred financing costs related to the Senior Subordinated Notes.
	On October 18, 2013, the Company redeemed $155.0 million aggregate principal amount of Senior Subordinated Notes at a redemption price that was 104.178% of the principal amount redeemed. A combination of cash on hand and the net proceeds from the sale of shares of common stock related to the underwriters' July 26, 2013 exercise in full of the overallotment option granted to them in connection with the IPO, in the amount of $56.0 million, was used to fund the redemption of $155.0 million aggregate principal amount, $6.5 million of redemption premium and $0.2 million in accrued and unpaid interest to the date of redemption. See Note 6 for additional discussion of the underwriters' overallotment option. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $8.5 million in the Company's consolidated statement of operations for the year ended December 31, 2013. This loss represented $6.5 million in redemption premium and $2.0 million for the write-off of a portion of the remaining unamortized deferred financing costs related to the Senior Subordinated Notes.
	On August 1, 2013, the Company redeemed $324.0 million aggregate principal amount of Senior Subordinated Notes at a redemption price that was 106.268% of the principal amount redeemed. The Company used a portion of the net proceeds from the IPO to redeem $146.0 million aggregate principal amount of Senior Subordinated Notes and incremental borrowings of $190.0 million under the Term Loan to redeem $178.0 million aggregate principal amount of Senior Subordinated Notes. The Company used cash on hand to pay $12.0 million of accrued and unpaid interest to the date of redemption. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $24.6 million in the consolidated statement of operations for the three and nine months ended September 30, 2013. This loss represented $20.3 million in redemption premium and $4.3 million for the write-off of a portion of the remaining deferred financing costs related to the Senior Subordinated Notes.
On March 8, 2013, the Company redeemed $50.0 million aggregate principal amount of Senior Subordinated Notes at a redemption price that was 106.268% of the principal amount redeemed. Cash on hand was used to fund the redemption of $50.0 million aggregate principal amount, $3.1 million of redemption premium and $2.5 million in accrued and unpaid interest to the date of redemption. In connection with this redemption, the Company recorded a loss on extinguishment of long-term debt of $3.9 million in the Company's consolidated statement of operations for the nine months ended September 30, 2013. This loss represented $3.1 million in redemption premium and $0.8 million for the write-off of a portion of the remaining unamortized deferred financing costs related to the Senior Subordinated Notes.
Fair Value
The fair value of the Company's long-term debt instruments at September 30, 2014 was $3,213.3 million. The fair value of the 2022 Senior Notes and the 2019 Senior Notes is estimated using quoted market prices for identical assets or liabilities that are traded in over-the-counter secondary markets that are not considered active. The fair value of the Term Loan is estimated using dealer quotes for identical assets or liabilities in markets that are not considered active. Consequently, the Company's long-term debt is classified as Level 2 within the fair value hierarchy.
At September 30, 2014, the carrying value of the Company's long-term debt was $3,162.7 million, excluding $2.9 million in unamortized premium and $3.9 million in unamortized discount.

Income_Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The Company's effective income tax rate was 37.9% and 54.6% for the three months ended September 30, 2014 and 2013, respectively, and 37.2% and 35.5% for the nine months ended September 30, 2014 and 2013, respectively.
	For the three months ended September 30, 2014 and 2013, the Company's effective tax rate differed from the U.S. federal statutory rate primarily due to state income taxes. The decrease in the 2014 effective tax rate was primarily attributable to a lower rate impact of state tax credits due to the increase in income before income taxes in 2014 and the benefit recorded to reflect a reduction in the Company’s expected annual effective tax rate relative to a small pre-tax loss for the three months ended September 30, 2013.
	For the nine months ended September 30, 2014 and 2013, the Company's effective tax rate differed from the U.S. federal statutory rate primarily due to state income taxes. The increase in the 2014 effective income tax rate was primarily attributable to a lower rate impact of state tax credits due to the increase in income before income taxes.
	In the ordinary course of business, the Company is subject to review by domestic and foreign taxing authorities, including the Internal Revenue Service (the “IRS”). In general, the Company is no longer subject to audit by the IRS for tax years through 2010 and state, local or foreign taxing authorities for tax years through 2008. Various other taxing authorities are in the process of auditing income tax returns of the Company and its subsidiaries. The Company does not anticipate that any adjustments from the audits would have a material impact on its consolidated financial position, results of operations or cash flows.

Shareholders_Equity_Notes

Shareholders Equity (Notes)	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	Shareholders' Equity
	The Company declared and paid cash dividends per common share during the periods presented as follows:


	(in millions, except per share amounts)		Dividends Per Share			Amount
	2014:00:00
	First Quarter		$	0.0425		$	7.3

	Second Quarter		$	0.0425		$	7.3

	Third Quarter		$	0.0425		$	7.3

	2013:00:00
	First Quarter		$	—		$	—

	Second Quarter		$	—		$	—

	Third Quarter		$	—		$	—

	Fourth Quarter		$	0.0425		$	7.3

	See Note 13 for a discussion of the dividend declared during the fourth quarter of 2014. Future dividends will be subject to the approval of the Company's Board of Directors and will depend upon the Company’s results of operations, financial condition, business prospects, capital requirements, contractual restrictions, any potential indebtedness the Company may incur, restrictions imposed by applicable law, tax considerations and other factors that the Company’s Board of Directors deems relevant. In addition, the Company’s ability to pay dividends on its common stock will be limited by restrictions on the ability of subsidiaries to pay dividends or make distributions to the Company, in each case, under the terms of certain current and future agreements governing the Company’s indebtedness.
	On January 1, 2014, the first offering period under the Company's Coworker Stock Purchase Plan (the “CSPP”) commenced. The CSPP provides the opportunity for eligible coworkers to acquire shares of the Company's common stock at a 5% discount from the closing market price on the final day of the offering period. There is no compensation expense associated with the CSPP.
	On July 2, 2013, the Company completed an IPO of 23,250,000 shares of common stock. On July 31, 2013, the Company completed the sale of an additional 3,487,500 shares of common stock to the underwriters of the IPO pursuant to the underwriters' July 26, 2013 exercise in full of the overallotment option granted to them in connection with the IPO. Such shares were registered under the Securities Act of 1933, as amended, pursuant to the Company's Registration Statement on Form S-1, which was declared effective by the SEC on June 26, 2013. The shares of common stock are listed on the NASDAQ Global Select Market under the symbol “CDW.” The Company's shares of common stock were sold to the underwriters at a price of $17.00 per share in the IPO and upon the exercise of the overallotment option, which together generated aggregate net proceeds of $424.7 million to the Company after deducting underwriting discounts, expenses and transaction costs.
	The Company has completed the following secondary public offerings, whereby certain selling stockholders sold shares of common stock to the underwriters. The Company did not receive any proceeds from these sales of shares.


	Secondary Offering Shares			Completion Date of Secondary Offering	Overallotment Shares (1)		Completion Date of Overallotment Shares		Secondary Offering Expenses
									(in millions)
	15,000,000			11/19/13	2,250,000		12/18/13		$	0.6

	10,000,000			3/12/14	1,500,000		3/12/14		$	0.4

	15,000,000			5/28/14	2,250,000		6/4/14		$	0.5

	15,000,000			9/8/2014 (2)	—		—		$	0.3

	(1) Under each underwriting agreement, the selling stockholders granted the underwriters an option, exercisable for thirty days, to purchase up to the additional amount of shares noted.
	(2) The option to purchase additional shares was not exercised in connection with the September 2014 secondary offering.
	The following pre-tax IPO-related expenses and secondary-offering-related expenses were included within selling and administrative expenses in the consolidated statements of operations during three and nine months ended September 30, 2014 and 2013, respectively.


	(in millions)	Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Acceleration charge for certain equity awards and related employer payroll taxes	$	—		$	40.7		$	—		$	40.7

	RDU Plan cash retention pool accrual	—			7.5			—			7.5

	Management services agreement termination fee	—			24.4			—			24.4

	Other expenses (1)	0.3			1.5			1.2			1.7

	IPO- and secondary-offering-related expenses	$	0.3		$	74.1		$	1.2		$	74.3

	(1) Other expenses include secondary-offering expenses of $0.3 million and $1.2 million for the three and nine months ended September 30, 2014, respectively. There were no secondary-offering expenses recognized during the three and nine months ended September 30, 2013.
	In June 2013, the Company’s Board of Directors and the Company's sole shareholder at that time, CDW Holdings, approved the reclassification of the Company’s Class A common shares and Class B common shares into a single class of common shares and a 143.0299613-for-1 stock split, effective immediately. The par value of the common shares was maintained at $0.01 per share. All references to common shares and per share amounts in the accompanying consolidated financial statements have been adjusted to reflect the reclassification and stock split on a retroactive basis.

EquityBased_Compensation

Equity-Based Compensation	9 Months Ended
	Sep. 30, 2014
Equity-Based Compensation [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	Equity-Based Compensation
	The Company recognized $3.9 million and $40.3 million in equity-based compensation expense for the three months ended September 30, 2014 and 2013, respectively, and $11.5 million and $44.3 million in equity-based compensation expense for the nine months ended September 30, 2014 and 2013, respectively. Equity-based compensation expense for the three and nine months ended September 30, 2013 included incremental expense of $36.7 million related to the acceleration of the expense recognition for the MPK Coworker Incentive Plan II (the "MPK Plan") units in conjunction with the Company's IPO.
	The following table sets forth a summary of the Company's stock option activity for the nine months ended September 30, 2014:


	Options		Number of Options			Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
	Outstanding at January 1, 2014		1,280,255			$	17

	Granted		1,244,386			$	24.39

	Forfeited/Expired		(9,264	)		$	24.29

	Exercised		(63,432	)		$	17		$	0.8

	Outstanding at September 30, 2014		2,451,945			$	20.72	8.6	$	25.3

	Vested at September 30, 2014		524,824			$	17	7.5	$	7.4

	Exercisable at September 30, 2014		524,824			$	17	7.5	$	7.4

	Expected to vest at September 30, 2014		1,874,216			$	21.75	8.8	$	17.4


	During the nine months ended September 30, 2014, the Company granted 1,244,386 stock options under the 2013 Long-Term Incentive Plan (the "2013 LTIP"). These options vest annually over three years. The Company has elected to use the Black-Scholes option pricing model to estimate the fair value of stock options granted. The Black-Scholes option pricing model incorporates various assumptions including volatility, expected term, risk-free interest rates and dividend yields. The assumptions used to value the stock options granted during the nine months ended September 30, 2014 are presented below.



	Assumptions	Nine Months Ended September 30, 2014
	Weighted-average grant date fair value	$	7.23

	Weighted-average volatility (1)	30		%
	Weighted-average risk-free rate (2)	1.77		%
	Dividend yield	0.7		%
	Expected term (in years) (3)	6



	-1	Based upon an assessment of the two-year, five-year and implied volatility for the Company’s selected peer group, adjusted for the Company’s leverage.


	-2	Based on a composite U.S. Treasury rate.


	-3	The expected term is calculated using the simplified method. The simplified method defines the expected term as the average of the option’s contractual term and the option’s weighted-average vesting period. The Company utilizes this method as it has limited historical stock option data that is sufficient to derive a reasonable estimate of the expected stock option term.
	The following table sets forth a summary of the Company's restricted stock unit activity for the nine months ended September 30, 2014:


		Number of Units			Weighted-Average Grant-Date Fair Value
	Nonvested at January 1, 2014	1,351,572			$	17.04

	Granted	25,844			24.29

	Vested/Settled	(1,528	)		17

	Forfeited	(101,069	)		17

	Nonvested at September 30, 2014	1,274,819			$	17.18

	In connection with the Company's 2013 IPO discussed in Note 6, CDW Holdings distributed all of its shares of the Company's common stock to its existing members in accordance with the members' respective membership interests and was subsequently dissolved in August 2013. Common stock received by holders of B Units in connection with the distribution is subject to any vesting provisions previously applicable to the holder's B Units. At the time of the IPO, B Unit holders received 3,798,508 shares of restricted stock with respect to B Units that had not yet vested at the time of the distribution. For the nine months ended September 30, 2014, 1,737,866 shares of such restricted stock vested/settled and 7,122 shares were forfeited. As of September 30, 2014, 847,045 shares of restricted stock were outstanding.
	During the nine months ended September 30, 2014, the Company granted 416,590 performance share units (the "PSUs") under the 2013 LTIP. The percentage of shares that shall vest will range from 0% to 200% of the number of PSUs granted based on the Company's performance against a cumulative adjusted free cash flow measure and cumulative non-GAAP net income per diluted share measure over a three-year performance period. The weighted-average grant-date fair value of the PSUs granted during the period was $24.39 per unit. During the nine months ended September 30, 2014, 3,100 PSUs were forfeited at a weighted-average grant-date fair value of $24.29. As of September 30, 2014, 413,490 PSUs were outstanding.

	As of September 30, 2014, the Company estimated there was $30.3 million of total unrecognized compensation expense to be recognized over the next 2.5 years.

Earnings_per_Share_Notes

Earnings per Share (Notes)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'

	8	Earnings per Share

	The numerator for both basic and diluted earnings per share is net income. The denominator for basic earnings per share is the weighted average number of common shares outstanding during the period. The dilutive effect of outstanding restricted stock, restricted stock units, stock options, Coworker Stock Purchase Plan units and MPK Plan units is reflected in the denominator for diluted earnings per share using the treasury stock method.
	The following is a reconciliation of basic shares to diluted shares:


		Three Months Ended September 30,		Nine Months Ended September 30,
	(in millions)	2014	2013	2014	2013
	Weighted-average shares - basic	170.9	166.8	170.2	152.5

	Effect of dilutive securities	2.1	—	2.5	1.8

	Weighted-average shares - diluted	173	166.8	172.7	154.3


	There was an insignificant amount of potential common shares excluded from diluted earnings per share for the three and nine month periods ended September 30, 2014, as their inclusion would have had an anti-dilutive effect. There were 6.3 million and 0.1 million potential common shares excluded from diluted earnings per share for the three and nine month periods ended September 30, 2013, as their inclusion would have had an anti-dilutive effect.

Deferred_Compensation_Plan

Deferred Compensation Plan	9 Months Ended
Deferred Compensation Plan	Sep. 30, 2014
Deferred Compensation Plan [Abstract]	'
Deferred Compensation Plan	'
	Deferred Compensation Plan
	On March 10, 2010, in connection with the Company’s purchase of $28.5 million principal amount of its outstanding senior subordinated debt, the Company established the Restricted Debt Unit Plan (the “RDU Plan”), an unfunded nonqualified deferred compensation plan. The total number of RDUs that can be granted under the RDU Plan is 28,500. As of September 30, 2014, 28,500 RDUs were outstanding. RDUs that are outstanding vest daily on a pro rata basis over the three-year period from January 1, 2012 (or, if later, the date of hire or the date of a subsequent RDU grant) through December 31, 2014. Participants have no rights to the underlying debt.
	The total amount of compensation available to be paid under the RDU Plan was initially to be based on two components, a principal component and an interest component. The principal component credits the RDU Plan with a notional amount equal to the $28.5 million face value of the Senior Subordinated Notes (the "Debt Pool"), together with certain redemption premium equivalents as noted below. The interest component credits the RDU Plan with amounts equal to the interest that would have been earned on the Debt Pool from March 10, 2010 through maturity on October 12, 2017, except as discussed below. Interest amounts for 2010 and 2011 were deferred until 2012, and thereafter, interest amounts were paid to participants semi-annually on the interest payment due dates.
	The Company used a portion of the IPO proceeds together with incremental borrowings to redeem $324.0 million of the total Senior Subordinated Notes outstanding on August 1, 2013. In connection with the IPO and the partial redemption of the Senior Subordinated Notes, the Company amended the RDU Plan to increase the retentive value of the plan. In accordance with the original terms of the RDU Plan, the principal component of the RDUs converted to a cash-denominated pool upon the redemption of the Senior Subordinated Notes. In addition, the Company added $0.1 million and $1.4 million to the principal component in the nine months ended September 30, 2014 and the year ended December 31, 2013, respectively, as redemption premium equivalents in accordance with the terms of the RDU plan. Under the terms of the amended RDU Plan, upon the partial redemption of outstanding Senior Subordinated Notes, the RDUs ceased to accrue the proportionate related interest component credits. The amended RDU Plan provides participants the opportunity to share on a pro rata basis in cash retention pools payable to participants who satisfy certain retention requirements. The aggregate amount of the retention pools was determined to be $15.0 million based upon the amount of interest component credits that would have been allocated to the RDU Plan if the Senior Subordinated Notes had remained outstanding from August 1, 2013 through maturity. The Company recorded a pre-tax charge of $7.5 million in the year ended December 31, 2013 for payment of the first cash retention pool. The second cash retention pool payment is expected to be made to participants who remain employed through December 31, 2015 in the first quarter of 2016. Participants continued to accrue an interest component credit for the proportionate amount of Senior Subordinated Notes still outstanding, payable on the aforementioned semi-annual due dates; such payments, however, will be deducted from the second retention pool payment amount of $7.5 million.
	Unrecognized compensation expense as of September 30, 2014 of approximately $2 million is expected to be recognized through 2014 and approximately $7 million in 2015 through 2017. Payments under the RDU Plan may be impacted if certain significant events occur or circumstances change that would impact the financial condition or structure of the Company.
	Compensation expense of $2.2 million and $10.4 million related to the RDU Plan was recognized for the three months ended September 30, 2014 and 2013, respectively, and $6.6 million and $14.7 million for the nine months ended September 30, 2014 and 2013, respectively. At September 30, 2014 and December 31, 2013, the Company had $28.2 million and $21.8 million of liabilities related to the RDU Plan recorded on the consolidated balance sheets, respectively.
	Payment of the principal component of the RDU Plan is expected to be made on October 12, 2017, unless accelerated due to a sale of the Company.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2014
Commitments and Contingencies [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	The Company is party to various legal proceedings that arise in the ordinary course of its business, which include commercial, intellectual property, employment, tort and other litigation matters. The Company is also subject to audit by federal, state and local authorities, by various partners and customers, including government agencies, relating to purchases and sales under various contracts. In addition, the Company is subject to indemnification claims under various contracts. From time to time, certain customers of the Company file voluntary petitions for reorganization or liquidation under the U.S. bankruptcy laws. In such cases, certain pre-petition payments received by the Company could be considered preference items and subject to return to the bankruptcy administrator.
	As of September 30, 2014, the Company does not believe that there is a reasonable possibility that any material loss exceeding the amounts already recognized for these proceedings and matters, if any, has been incurred. However, the ultimate resolutions of these proceedings and matters are inherently unpredictable. As such, the Company's financial condition and results of operations could be adversely affected in any particular period by the unfavorable resolution of one or more of these proceedings or matters.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Reporting Information [Line Items]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
	The following table presents information about the Company’s segments for the three and nine months ended September 30, 2014 and 2013:


	(in millions)	Corporate			Public			Other			Headquarters			Total

	Three Months Ended September 30, 2014:

	Net sales	$	1,622.70		$	1,468.80		$	174.6		$	—		$	3,266.10

	Income (loss) from operations	103.2			101.3			8.5			(28.3		)	184.7

	Depreciation and amortization expense	(24.1		)	(10.9		)	(2.2		)	(14.6		)	(51.8		)



	Three Months Ended September 30, 2013:

	Net sales	$	1,465.80		$	1,244.60		$	153.9		$	—		$	2,864.30

	Income (loss) from operations	63.2			71.1			3.7			(45.1		)	92.9

	Depreciation and amortization expense	(24.3		)	(11.0		)	(2.1		)	(14.6		)	(52.0		)



	(in millions)	Corporate			Public			Other			Headquarters			Total
	Nine Months Ended September 30, 2014:
	Net Sales	$	4,784.50		$	3,710.30		$	529.6		$	—		$	9,024.40

	Income (loss) from operations	323.9			244.1			22.7			(82.0		)	508.7

	Depreciation and amortization expense	(72.3		)	(32.8		)	(6.5		)	(44.3		)	(155.9		)

	Nine Months Ended September 30, 2013:
	Net sales	$	4,407.10		$	3,174.00		$	474.2		$	—		$	8,055.30

	Income (loss) from operations	260.5			185.8			18.6			(98.3		)	366.6

	Depreciation and amortization expense	(73.1		)	(33.1		)	(6.6		)	(43.5		)	(156.3		)
Segment Information	'
	Segment Information
	Segment information is presented in accordance with a “management approach,” which designates the internal reporting used by the chief operating decision-maker for making decisions and assessing performance as the source of the Company's reportable segments. The Company's segments are organized in a manner consistent with which separate financial information is available and evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and in assessing performance.
	The Company has two reportable segments: Corporate, which is comprised primarily of private sector business customers, and Public, which is comprised of government agencies and education and healthcare institutions. The Company also has two other operating segments, CDW Advanced Services and Canada, which do not meet the reportable segment quantitative thresholds and, accordingly, are combined together as “Other.”
	The Company has centralized logistics and headquarters functions that provide services to the segments. The logistics function includes purchasing, distribution and fulfillment services to support both the Corporate and Public segments. As a result, costs and intercompany charges associated with the logistics function are fully allocated to both of these segments based on a percent of sales. The centralized headquarters function provides services in areas such as accounting, information technology, marketing, legal and coworker services. Headquarters' function costs that are not allocated to the segments are included under the heading of “Headquarters” in the tables below. Depreciation expense is included in Headquarters as it is not allocated among segments or used in measuring segment performance.
	The Company allocates resources to and evaluates performance of its segments based on net sales, income (loss) from operations and Adjusted EBITDA, a non-GAAP measure as defined in the Company's credit agreements. However, the Company has concluded that income (loss) from operations is the more useful measure in terms of discussion of operating results, as it is a GAAP measure.
	Segment information for total assets and capital expenditures is not presented as such information is not used in measuring segment performance or allocating resources between segments.
	Selected Segment Financial Information
	The following table presents information about the Company’s segments for the three and nine months ended September 30, 2014 and 2013:


	(in millions)	Corporate			Public			Other			Headquarters			Total

	Three Months Ended September 30, 2014:

	Net sales	$	1,622.70		$	1,468.80		$	174.6		$	—		$	3,266.10

	Income (loss) from operations	103.2			101.3			8.5			(28.3		)	184.7

	Depreciation and amortization expense	(24.1		)	(10.9		)	(2.2		)	(14.6		)	(51.8		)



	Three Months Ended September 30, 2013:

	Net sales	$	1,465.80		$	1,244.60		$	153.9		$	—		$	2,864.30

	Income (loss) from operations	63.2			71.1			3.7			(45.1		)	92.9

	Depreciation and amortization expense	(24.3		)	(11.0		)	(2.1		)	(14.6		)	(52.0		)



	(in millions)	Corporate			Public			Other			Headquarters			Total
	Nine Months Ended September 30, 2014:
	Net Sales	$	4,784.50		$	3,710.30		$	529.6		$	—		$	9,024.40

	Income (loss) from operations	323.9			244.1			22.7			(82.0		)	508.7

	Depreciation and amortization expense	(72.3		)	(32.8		)	(6.5		)	(44.3		)	(155.9		)

	Nine Months Ended September 30, 2013:
	Net sales	$	4,407.10		$	3,174.00		$	474.2		$	—		$	8,055.30

	Income (loss) from operations	260.5			185.8			18.6			(98.3		)	366.6

	Depreciation and amortization expense	(73.1		)	(33.1		)	(6.6		)	(43.5		)	(156.3		)

Supplemental_Guarantor_Informa

Supplemental Guarantor Information	9 Months Ended
	Sep. 30, 2014
Supplemental Guarantor Information [Abstract]	'
Supplemental Guarantor Information	'
	Supplemental Guarantor Information
	The 2019 Senior Notes and the 2022 Senior Notes are, and, prior to being redeemed in full, the Senior Subordinated Notes and the Senior Secured Notes were guaranteed by Parent and each of CDW LLC’s direct and indirect, 100% owned, domestic subsidiaries (the “Guarantor Subsidiaries”). All guarantees by Parent and Guarantor Subsidiaries are and were joint and several, and full and unconditional; provided that guarantees by the Guarantor Subsidiaries (i) are subject to certain customary release provisions contained in the indentures governing the 2019 Senior Notes and the 2022 Senior Notes and (ii) were subject to certain customary release provisions contained in the indentures governing the Senior Subordinated Notes and the Senior Secured Notes until such indentures were satisfied and discharged in 2014. CDW LLC's Canada subsidiary (the “Non-Guarantor Subsidiary”) does not guarantee the debt obligations. CDW LLC and CDW Finance Corporation, as co-issuers, are 100% owned by Parent, and each of the Guarantor Subsidiaries and the Non-Guarantor Subsidiary is 100% owned by CDW LLC.
	On May 9, 2014, all of the remaining $42.5 million aggregate principal amount of Senior Subordinated Notes was redeemed in full and the indenture governing the Senior Subordinated Notes was satisfied and discharged. See Note 4 for more information.
	On August 5, 2014, CDW LLC and CDW Finance Corporation completed the issuance of $600.0 million aggregate principal amount of 2022 Senior Notes, which are guaranteed by Parent and the Guarantor Subsidiaries. The proceeds from this issuance, along with cash on hand, were used to redeem all of the remaining $325.0 million aggregate principal amount of the Senior Secured Notes and to redeem $234.7 million aggregate principal amount of the 2019 Senior Notes. The indenture governing the Senior Secured Notes was concurrently satisfied and discharged. See Note 4 for more information.
	The following tables set forth condensed consolidating balance sheets as of September 30, 2014 and December 31, 2013, consolidating statements of operations for the three and nine months ended September 30, 2014 and 2013, condensed consolidating statements of comprehensive income for the three and nine months ended September 30, 2014 and 2013, and condensed consolidating statements of cash flows for the nine months ended September 30, 2014 and 2013, in accordance with Rule 3-10 of Regulation S-X. The consolidating financial information includes the accounts of CDW Corporation (the “Parent Guarantor”), which has no independent assets or operations, the accounts of CDW LLC (the “Subsidiary Issuer”), the combined accounts of the Guarantor Subsidiaries, the accounts of the Non-Guarantor Subsidiary, and the accounts of CDW Finance Corporation (the “Co-Issuer”) for the periods indicated. The information was prepared on the same basis as the Company’s consolidated financial statements.

	Condensed Consolidating Balance Sheet

	30-Sep-14
	(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
		Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
	Assets

	Current assets:
	Cash and cash equivalents	$	—		$	340		$	—		$	30.5		$	—		$	(12.7	)		$	357.8

	Accounts receivable, net	—			—			1,410.10			63.1			—			—				1,473.20

	Merchandise inventory	—			—			419.7			3.8			—			—				423.5

	Miscellaneous receivables	—			58.8			110.8			5.8			—			—				175.4

	Prepaid expenses and other	—			16.5			67.5			3.3			—			(1.0		)		86.3

	Total current assets	—			415.3			2,008.10			106.5			—			(13.7		)		2,516.20


	Property and equipment, net	—			74.3			56.1			1.3			—			—				131.7

	Goodwill	—			751.9			1,439.00			27.7			—			—				2,218.60

	Other intangible assets, net	—			322.8			878.5			5.7			—			—				1,207.00

	Deferred financing costs, net	—			31.8			—			—			—			—				31.8

	Other assets	4.4			2.1			—			1.4			—			(5.8		)		2.1

	Investment in and advances to subsidiaries	889.6			2,826.30			—			—			—			(3,715.9		)		—

	Total assets	$	894		$	4,424.50		$	4,381.70		$	142.6		$	—		$	(3,735.4	)		$	6,107.40


	Liabilities and Shareholders’ Equity

	Current liabilities:
	Accounts payable—trade	$	—		$	18.6		$	748.5		$	23.5		$	—		$	(12.7	)		$	777.9

	Accounts payable—inventory financing	—			—			299.7			—			—			—				299.7

	Current maturities of	—			15.4			—			—			—			—				15.4
	long-term debt
	Deferred revenue	—			—			99.2			3.1			—			—				102.3

	Accrued expenses	—			160			165.6			7.7			—			(1.0		)		332.3

	Total current liabilities	—			194			1,313.00			34.3			—			(13.7		)		1,527.60


	Long-term liabilities:
	Debt	—			3,146.30			—			—			—			—				3,146.30

	Deferred income taxes	—			153.9			344.4			1.5			—			(4.4		)		495.4

Other liabilities	—			40.7			3.6			1.2			—			(1.4		)		44.1

Total long-term liabilities	—			3,340.90			348			2.7			—			(5.8		)		3,685.80


Total shareholders’ equity	894			889.6			2,720.70			105.6			—			(3,715.9		)		894

Total liabilities and shareholders’ equity	$	894		$	4,424.50		$	4,381.70		$	142.6		$	—		$	(3,735.4	)		$	6,107.40



Condensed Consolidating Balance Sheet

31-Dec-13
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Assets

Current assets:
Cash and cash equivalents	$	—		$	196.5		$	—		$	14		$	—		$	(22.4	)		$	188.1

Accounts receivable, net	—			—			1,375.90			75.1			—			—				1,451.00

Merchandise inventory	—			—			378.9			3.1			—			—				382

Miscellaneous receivables	—			49.9			91			5.4			—			—				146.3

Prepaid expenses and other	—			10.7			33.4			5.1			—			(3.1		)		46.1

Total current assets	—			257.1			1,879.20			102.7			—			(25.5		)		2,213.50


Property and equipment, net	—			69.7			59.6			1.8			—			—				131.1

Goodwill	—			751.9			1,439.00			29.4			—			—				2,220.30

Other intangible assets, net	—			338.5			982.8			6.7			—			—				1,328.00

Deferred financing costs, net	—			30.1			—			—			—			—				30.1

Other assets	4.9			1.4			0.1			0.9			—			(5.7		)		1.6

Investment in and advances to subsidiaries	706.8			2,909.40			—			—			—			(3,616.2		)		—

Total assets	$	711.7		$	4,358.10		$	4,360.70		$	141.5		$	—		$	(3,647.4	)		$	5,924.60


Liabilities and Shareholders’ Equity

Current liabilities:
Accounts payable-trade	$	—		$	21.4		$	637.3		$	26.5		$	—		$	(22.4	)		$	662.8

Accounts payable-inventory financing	—			—			256.6			—			—			—				256.6

Current maturities of long-term debt	—			45.4			—			—			—			—				45.4

Deferred revenue	—			—			89.9			4.9			—			—				94.8

Accrued expenses	—			163.5			175.1			7.5			—			(3.1		)		343

Total current liabilities	—			230.3			1,158.90			38.9			—			(25.5		)		1,402.60


Long-term liabilities:
Debt	—			3,205.80			—			—			—			—				3,205.80

Deferred income taxes	—			178.3			388.4			1.6			—			(4.8		)		563.5

Other liabilities	—			36.9			3.6			1.4			—			(0.9		)		41

Total long-term liabilities	—			3,421.00			392			3			—			(5.7		)		3,810.30


Total shareholders’ equity	711.7			706.8			2,809.80			99.6			—			(3,616.2		)		711.7

Total liabilities and shareholders' equity	$	711.7		$	4,358.10		$	4,360.70		$	141.5		$	—		$	(3,647.4	)		$	5,924.60




Consolidating Statement of Operations

Three Months Ended September 30, 2014
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net sales	$	—		$	—		$	3,140.60		$	125.5		$	—		$	—			$	3,266.10

Cost of sales	—			—			2,648.80			110			—			—				2,758.80

Gross profit	—			—			491.8			15.5			—			—				507.3

Selling and administrative expenses	—			28.3			248.7			8.4			—			—				285.4

Advertising expense	—			—			36.4			0.8			—			—				37.2

(Loss) income from operations	—			(28.3		)	206.7			6.3			—			—				184.7

Interest (expense) income, net	—			(50.2		)	0.1			—			—			—				(50.1		)

Net loss on extinguishments of long-term debt	—			(45.8		)	—			—			—			—				(45.8		)

Management fee	—			0.9			—			(0.9		)	—			—				—

Other income (expense), net	—			—			0.6			0.1			—			—				0.7

(Loss) income before income taxes	—			(123.4		)	207.4			5.5			—			—				89.5

Income tax benefit (expense)	—			46			(78.4		)	(1.5		)	—			—				(33.9		)

(Loss) income before equity in earnings of subsidiaries	—			(77.4		)	129			4			—			—				55.6

Equity in earnings of subsidiaries	55.6			133			—			—			—			(188.6		)		—

Net income	$	55.6		$	55.6		$	129		$	4		$	—		$	(188.6	)		$	55.6







Consolidating Statement of Operations

Three Months Ended September 30, 2013
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net sales	$	—		$	—		$	2,753.40		$	110.9		$	—		$	—			$	2,864.30

Cost of sales	—			—			2,309.00			96.9			—			—				2,405.90

Gross profit	—			—			444.4			14			—			—				458.4

Selling and administrative expenses	24.4			20.6			278.6			8.8			—			—				332.4

Advertising expense	—			—			31.9			1.2			—			—				33.1

(Loss) income from operations	(24.4		)	(20.6		)	133.9			4			—			—				92.9

Interest (expense) income, net	—			(56.4		)	0.2			—			—			—				(56.2		)

Net loss on extinguishments of long-term debt	—			(41.3		)	—			—			—			—				(41.3		)

Management fee	—			1			—			(1.0		)	—			—				—

Other (expense) income, net	—			(0.4		)	0.2			—			—			—				(0.2		)

(Loss) income before income taxes	(24.4		)	(117.7		)	134.3			3			—			—				(4.8		)

Income tax benefit (expense)	9.2			43.6			(49.4		)	(0.8		)	—			—				2.6

(Loss) income before equity in earnings of subsidiaries	(15.2		)	(74.1		)	84.9			2.2			—			—				(2.2		)

Equity in earnings of subsidiaries	13			87.1			—			—			—			(100.1		)		—

Net income	$	(2.2	)	$	13		$	84.9		$	2.2		$	—		$	(100.1	)		$	(2.2	)



















Consolidating Statement of Operations

Nine Months Ended September 30, 2014
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net sales	$	—		$	—		$	8,631.70		$	392.7		$	—		$	—			$	9,024.40

Cost of sales	—			—			7,248.70			346.3			—			—				7,595.00

Gross profit	—			—			1,383.00			46.4			—			—				1,429.40

Selling and administrative expenses	—			82			712.3			25.9			—			—				820.2

Advertising expense	—			—			97.8			2.7			—			—				100.5

(Loss) income from operations	—			(82.0		)	572.9			17.8			—			—				508.7

Interest (expense) income, net	—			(149.0		)	0.1			0.2			—			—				(148.7		)

Net loss on extinguishments of long-term debt	—			(53.8		)	—			—			—			—				(53.8		)

Management fee	—			2.9			—			(2.9		)	—			—				—

Other income (expense), net	—			0.1			1.4			(0.1		)	—			—				1.4

(Loss) income before income taxes	—			(281.8		)	574.4			15			—			—				307.6

Income tax benefit (expense)	—			105.1			(215.6		)	(4.0		)	—			—				(114.5		)

(Loss) income before equity in earnings of subsidiaries	—			(176.7		)	358.8			11			—			—				193.1

Equity in earnings of subsidiaries	193.1			369.8			—			—			—			(562.9		)		—

Net income	$	193.1		$	193.1		$	358.8		$	11		$	—		$	(562.9	)		$	193.1





















Consolidating Statement of Operations
Nine Months Ended September 30, 2013
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net sales	$	—		$	—		$	7,705.20		$	350.1		$	—		$	—			$	8,055.30

Cost of sales	—			—			6,436.50			306.8			—			—				6,743.30

Gross profit	—			—			1,268.70			43.3			—			—				1,312.00

Selling and administrative expenses	24.4			73.9			725.4			26.6			—			—				850.3

Advertising expense	—			—			92			3.1			—			—				95.1

(Loss) income from operations	(24.4		)	(73.9		)	451.3			13.6			—			—				366.6

Interest (expense) income, net	—			(199.0		)	0.2			0.2			—			—				(198.6		)

Net loss on extinguishments of long-term debt	—			(55.5		)	—			—			—			—				(55.5		)

Management fee	—			3.4			—			(3.4		)	—			—				—

Other (expense) income, net	—			(0.5		)	0.6			0.3			—			—				0.4

(Loss) income before income taxes	(24.4		)	(325.5		)	452.1			10.7			—			—				112.9

Income tax benefit (expense)	9.2			121			(167.8		)	(2.5		)	—			—				(40.1		)

(Loss) income before equity in earnings of subsidiaries	(15.2		)	(204.5		)	284.3			8.2			—			—				72.8

Equity in earnings of subsidiaries	88			292.5			—			—			—			(380.5		)		—

Net income	$	72.8		$	88		$	284.3		$	8.2		$	—		$	(380.5	)		$	72.8



















Condensed Consolidating Statement of Comprehensive Income

Three Months Ended September 30, 2014
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Comprehensive income (loss)	$	50.4		$	50.4		$	129		$	(1.2	)	$	—		$	(178.2	)		$	50.4






























Condensed Consolidating Statement of Comprehensive Income

Three Months Ended September 30, 2013
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Comprehensive income (loss)	$	(0.2	)	$	15		$	84.9		$	4.2		$	—		$	(104.1	)		$	(0.2	)
































Condensed Consolidating Statement of Comprehensive Income
Nine Months Ended September 30, 2014
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Comprehensive income (loss)	$	187.7		$	187.7		$	358.8		$	5.6		$	—		$	(552.1	)		$	187.7
































Condensed Consolidating Statement of Comprehensive Income
Nine Months Ended September 30, 2013
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Comprehensive income (loss)	$	69.1		$	84.2		$	284.3		$	4.5		$	—		$	(373.0	)		$	69.1





























Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2014
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net cash (used in) provided by operating activities	$	—		$	(127.2	)	$	450.9		$	17.1		$	—		$	9.7			$	350.5

Cash flows from investing activities:
Capital expenditures	—			(29.9		)	(4.5		)	—			—			—				(34.4		)

Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	—			(20.9		)	—			—			—			—				(20.9		)

Premium payments on interest rate cap agreements	—			(0.7		)	—			—			—			—				(0.7		)

Net cash used in investing activities	—			(51.5		)	(4.5		)	—			—			—				(56.0		)

Cash flows from financing activities:
Repayments of long-term debt	—			(11.6		)	—			—			—			—				(11.6		)

Proceeds from the issuance of long-term debt	—			600			—			—			—			—				600

Payments to extinguish long-term debt	—			(723.9		)	—			—			—			—				(723.9		)

Payments of debt financing costs	—			(14.4		)	—			—			—			—				(14.4		)

Net change in accounts payable-inventory financing	—			—			43.1			—			—			—				43.1

Proceeds from stock option exercises	—			1.1			—			—			—			—				1.1

Proceeds from Coworker Stock Purchase Plan	—			3.7			—			—			—			—				3.7

Dividends paid	(21.9		)	—			—			—			—			—				(21.9		)

Excess tax benefits from equity-based compensation	—			0.2			—			—			—			—				0.2

Advances from (to) affiliates	21.9			467.1			(489.5		)	0.5			—			—				—

Net cash provided by (used in) financing activities	—			322.2			(446.4		)	0.5			—			—				(123.7		)

Effect of exchange rate changes on cash and cash equivalents	—			—			—			(1.1		)	—			—				(1.1		)

Net increase in cash and cash equivalents	—			143.5			—			16.5			—			9.7				169.7

Cash and cash equivalents—beginning of period	—			196.5			—			14			—			(22.4		)		188.1

Cash and cash equivalents—end of period	$	—		$	340		$	—		$	30.5		$	—		$	(12.7	)		$	357.8







Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2013
(in millions)	Parent			Subsidiary			Guarantor			Non-Guarantor			Co-Issuer			Consolidating				Consolidated
	Guarantor			Issuer			Subsidiaries			Subsidiary						Adjustments
Net cash (used in) provided by operating activities	$	(15.2	)	$	(71.5	)	$	425.5		$	19		$	—		$	13			$	370.8

Cash flows from investing activities:

Capital expenditures	—			(27.2		)	(3.2		)	(0.1		)	—			—				(30.5		)

Net cash used in investing activities	—			(27.2		)	(3.2		)	(0.1		)	—			—				(30.5		)

Cash flows from financing activities:

Proceeds from borrowings under revolving credit facility	—			63			—			—			—			—				63

Repayments of borrowings under revolving credit facility	—			(63.0		)	—			—			—			—				(63.0		)

Repayments of long-term debt	—			(47.2		)	—			—			—			—				(47.2		)

Proceeds from issuance of long-term debt	—			1,535.20			—			—			—			—				1,535.20

Payments to extinguish long-term debt	—			(1,885.9		)	—			—			—			—				(1,885.9		)

Net change in accounts payable - inventory financing	—			—			(24.0		)	—			—			—				(24.0		)

Prepayment of Incentive compensation plan withholding taxes	—			(4.0		)	(19.6		)	(0.5		)	—			—				(24.1		)

Net proceeds from issuance of common shares	424.7			—			—			—			—			—				424.7

Advances from (to) affiliates	(409.5		)	788.1			(378.7		)	0.1			—			—				—

Other financing activities	—			(6.1		)	—			—			—			—				(6.1		)

Net cash provided by (used in) financing activities	15.2			380.1			(422.3		)	(0.4		)	—			—				(27.4		)

Effect of exchange rate changes on cash and cash equivalents	—			—			—			(0.6		)	—			—				(0.6		)

Net increase in cash and cash equivalents	—			281.4			—			17.9			—			13				312.3

Cash and cash equivalents—beginning of period	—			48			—			9.8			—			(19.9		)		37.9

Cash and cash equivalents—end of period	$	—		$	329.4		$	—		$	27.7		$	—		$	(6.9	)		$	350.2

Subsequent_Events_Notes

Subsequent Events (Notes)	9 Months Ended
Subsequent Events (Notes)	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	Subsequent Events
	During the fourth quarter of 2014, the Company entered into interest rate cap agreements with a combined notional amount of $300.0 million. Under the agreements, the Company made premium payments totaling $0.6 million to the counterparties in exchange for the right to receive payments equal to the amount, if any, by which three-month LIBOR exceeds 2.0% during the agreement period. The interest rate cap agreements are effective from January 14, 2015 through January 14, 2017.
	On November 6, 2014, the Company announced that its Board of Directors approved an increase in its quarterly cash dividend and declared a quarterly cash dividend on the Company's common stock of $0.0675 per share. The dividend will be paid on December 10, 2014 to all stockholders of record as of the close of business on November 25, 2014. Future dividends will be subject to the approval of the Company's Board of Directors.
	On November 6, 2014, the Company announced that its Board of Directors approved a new $500 million share repurchase program effective immediately under which the Company may repurchase shares of its common stock in the open market or through privately negotiated transactions, depending on share price, market conditions and other factors. The share repurchase program does not obligate the Company to repurchase any dollar amount or number of shares, and repurchases may be commenced or suspended from time to time without prior notice. As of the date of this filing, no shares have been repurchased under the share repurchase program.

	On November 10, 2014, the Company completed its acquisition of a 35% noncontrolling equity interest in Kelway, a UK-based IT solutions provider, which has global supply chain relationships that enable it to conduct business in more than 100 countries. The investment in Kelway will be accounted for as an equity method investment and will enhance the Company's ability to provide IT solutions to U.S. based multi-national customers.

Description_Of_Business_And_Su1

Description Of Business And Summary Of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Description of Business and Summary of Significant Accounting Policies [Abstract]	'
Basis of Presentation, Policy	'
	Basis of Presentation
	The accompanying unaudited interim consolidated financial statements as of September 30, 2014 and for the three and nine months ended September 30, 2014 and 2013 (the "consolidated financial statements") have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the "SEC") for interim financial statements. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been condensed or omitted pursuant to such rules and regulations. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 (the "December 31, 2013 financial statements"). The significant accounting policies used in preparing these consolidated financial statements were applied on a basis consistent with those reflected in the December 31, 2013 financial statements. In the opinion of management, the consolidated financial statements contain all adjustments (consisting of a normal, recurring nature) necessary to present fairly the Company's financial position, results of operations, comprehensive income, cash flows and changes in shareholders' equity as of the dates and for the periods indicated. The unaudited consolidated statements of operations for such interim periods reported are not necessarily indicative of results for the full year.
	CDW Corporation ("Parent") was previously owned directly by CDW Holdings LLC ("CDW Holdings"), a company controlled by investment funds affiliated with Madison Dearborn Partners, LLC ("Madison Dearborn") and Providence Equity Partners, L.L.C. ("Providence Equity," and together with Madison Dearborn, the "Sponsors"), certain other co-investors and certain members of CDW management. On July 2, 2013, Parent completed an initial public offering (the "IPO") of its common stock. In connection with the IPO, CDW Holdings distributed all of its shares of Parent's common stock to its members in June 2013 in accordance with the members' respective membership interests and was subsequently dissolved in August 2013. See Note 6 for additional discussion of the IPO.
	Parent has two 100% owned subsidiaries, CDW LLC and CDW Finance Corporation. CDW LLC is an Illinois limited liability company that, together with its 100% owned subsidiaries, holds all material assets and conducts all business activities and operations of the Company. CDW Finance Corporation is a Delaware corporation formed for the sole purpose of acting as co-issuer of certain debt obligations as described in Note 12 and does not hold any material assets or engage in any business activities or operations.
	Throughout these notes, the terms the “Company” and “CDW” refer to Parent and its 100% owned subsidiaries.
Principles of Consolidation, Policy	'
	Principles of Consolidation
	The accompanying consolidated financial statements include the accounts of Parent and its 100% owned subsidiaries. All intercompany transactions and accounts are eliminated in consolidation.
Use of Estimates, Policy	'
	Use of Estimates
	The preparation of consolidated financial statements in accordance with GAAP requires management to make use of certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. The Company bases its estimates on historical experience and on various other assumptions that management believes are reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
	The notes to the consolidated financial statements contained in the December 31, 2013 financial statements include an additional discussion of the significant accounting policies and estimates used in the preparation of the Company's consolidated financial statements. There have been no material changes to the Company's significant accounting policies and estimates during the nine months ended September 30, 2014.

Inventory_Financing_Agreements1

Inventory Financing Agreements (Tables)	9 Months Ended
	Sep. 30, 2014
Inventory Financing Agreements [Abstract]	'
Inventory Financing Agreements	'
	The following table presents the amounts included in accounts payable-inventory financing:


	(in millions)	30-Sep-14		31-Dec-13
	Revolving Loan inventory financing agreement	$	298.8	$	256.1

	Other inventory financing agreements	0.9		0.5

	Accounts payable-inventory financing	$	299.7	$	256.6

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Long-term Debt, Unclassified [Abstract]	'
Carrying Value of Long-Term Debt	'
	Long-term debt was as follows:


	(dollars in millions)	Interest		September 30,			December 31,
		Rate (1)		2014			2013
	Senior secured asset-based revolving credit facility	—	%	$	—		$	—

	Senior secured term loan facility	3.25	%	1,517.40			1,528.90

	Unamortized discount on senior secured term loan facility			(3.9		)	(4.4		)
	Senior secured notes due 2018	—	%	—			325

	Senior notes due 2019	8.5	%	1,045.30			1,305.00

	Unamortized premium on senior notes due 2019			2.9			4.2

	Senior notes due 2022	6	%	600			—

	Senior subordinated notes due 2017	—	%	—			92.5

	Total long-term debt			3,161.70			3,251.20

	Less current maturities of long-term debt			(15.4		)	(45.4		)
	Long-term debt, excluding current maturities			$	3,146.30		$	3,205.80

	(1)Interest rate at September 30, 2014.

Shareholders_Equity_Tables

Shareholders Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity [Abstract]	'
Dividends Declared [Table Text Block]	'
	The Company declared and paid cash dividends per common share during the periods presented as follows:


	(in millions, except per share amounts)		Dividends Per Share			Amount
	2014:00:00
	First Quarter		$	0.0425		$	7.3

	Second Quarter		$	0.0425		$	7.3

	Third Quarter		$	0.0425		$	7.3

	2013:00:00
	First Quarter		$	—		$	—

	Second Quarter		$	—		$	—

	Third Quarter		$	—		$	—

	Fourth Quarter		$	0.0425		$	7.3

Shares sold by certain selling stockholders [Table Text Block]	'
	The Company has completed the following secondary public offerings, whereby certain selling stockholders sold shares of common stock to the underwriters. The Company did not receive any proceeds from these sales of shares.


	Secondary Offering Shares			Completion Date of Secondary Offering	Overallotment Shares (1)		Completion Date of Overallotment Shares		Secondary Offering Expenses
									(in millions)
	15,000,000			11/19/13	2,250,000		12/18/13		$	0.6

	10,000,000			3/12/14	1,500,000		3/12/14		$	0.4

	15,000,000			5/28/14	2,250,000		6/4/14		$	0.5

	15,000,000			9/8/2014 (2)	—		—		$	0.3

	(1) Under each underwriting agreement, the selling stockholders granted the underwriters an option, exercisable for thirty days, to purchase up to the additional amount of shares noted.
	(2) The option to purchase additional shares was not exercised in connection with the September 2014 secondary offering.
IPO and Secondary-Offering- Related Expenses [Table Text Block]	'
	The following pre-tax IPO-related expenses and secondary-offering-related expenses were included within selling and administrative expenses in the consolidated statements of operations during three and nine months ended September 30, 2014 and 2013, respectively.


	(in millions)	Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Acceleration charge for certain equity awards and related employer payroll taxes	$	—		$	40.7		$	—		$	40.7

	RDU Plan cash retention pool accrual	—			7.5			—			7.5

	Management services agreement termination fee	—			24.4			—			24.4

	Other expenses (1)	0.3			1.5			1.2			1.7

	IPO- and secondary-offering-related expenses	$	0.3		$	74.1		$	1.2		$	74.3

	(1) Other expenses include secondary-offering expenses of $0.3 million and $1.2 million for the three and nine months ended September 30, 2014, respectively. There were no secondary-offering expenses recognized during the three and nine months ended September 30, 2013.

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Equity-Based Compensation [Abstract]	'
Schedule of Stock Options Roll Forward [Table Text Block]	'
	The following table sets forth a summary of the Company's stock option activity for the nine months ended September 30, 2014:


	Options		Number of Options			Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
	Outstanding at January 1, 2014		1,280,255			$	17

	Granted		1,244,386			$	24.39

	Forfeited/Expired		(9,264	)		$	24.29

	Exercised		(63,432	)		$	17		$	0.8

	Outstanding at September 30, 2014		2,451,945			$	20.72	8.6	$	25.3

	Vested at September 30, 2014		524,824			$	17	7.5	$	7.4

	Exercisable at September 30, 2014		524,824			$	17	7.5	$	7.4

	Expected to vest at September 30, 2014		1,874,216			$	21.75	8.8	$	17.4

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
	The assumptions used to value the stock options granted during the nine months ended September 30, 2014 are presented below.



	Assumptions	Nine Months Ended September 30, 2014
	Weighted-average grant date fair value	$	7.23

	Weighted-average volatility (1)	30		%
	Weighted-average risk-free rate (2)	1.77		%
	Dividend yield	0.7		%
	Expected term (in years) (3)	6



	-1	Based upon an assessment of the two-year, five-year and implied volatility for the Company’s selected peer group, adjusted for the Company’s leverage.


	-2	Based on a composite U.S. Treasury rate.


	-3	The expected term is calculated using the simplified method. The simplified method defines the expected term as the average of the option’s contractual term and the option’s weighted-average vesting period. The Company utilizes this method as it has limited historical stock option data that is sufficient to derive a reasonable estimate of the expected stock option term.
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	'
	The following table sets forth a summary of the Company's restricted stock unit activity for the nine months ended September 30, 2014:


		Number of Units			Weighted-Average Grant-Date Fair Value
	Nonvested at January 1, 2014	1,351,572			$	17.04

	Granted	25,844			24.29

	Vested/Settled	(1,528	)		17

	Forfeited	(101,069	)		17

	Nonvested at September 30, 2014	1,274,819			$	17.18

Earnings_per_Share_Tables

Earnings per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Weighted Average Number of Shares [Table Text Block]	'
	The following is a reconciliation of basic shares to diluted shares:


		Three Months Ended September 30,		Nine Months Ended September 30,
	(in millions)	2014	2013	2014	2013
	Weighted-average shares - basic	170.9	166.8	170.2	152.5

	Effect of dilutive securities	2.1	—	2.5	1.8

	Weighted-average shares - diluted	173	166.8	172.7	154.3

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
	The following table presents information about the Company’s segments for the three and nine months ended September 30, 2014 and 2013:


	(in millions)	Corporate			Public			Other			Headquarters			Total

	Three Months Ended September 30, 2014:

	Net sales	$	1,622.70		$	1,468.80		$	174.6		$	—		$	3,266.10

	Income (loss) from operations	103.2			101.3			8.5			(28.3		)	184.7

	Depreciation and amortization expense	(24.1		)	(10.9		)	(2.2		)	(14.6		)	(51.8		)



	Three Months Ended September 30, 2013:

	Net sales	$	1,465.80		$	1,244.60		$	153.9		$	—		$	2,864.30

	Income (loss) from operations	63.2			71.1			3.7			(45.1		)	92.9

	Depreciation and amortization expense	(24.3		)	(11.0		)	(2.1		)	(14.6		)	(52.0		)



	(in millions)	Corporate			Public			Other			Headquarters			Total
	Nine Months Ended September 30, 2014:
	Net Sales	$	4,784.50		$	3,710.30		$	529.6		$	—		$	9,024.40

	Income (loss) from operations	323.9			244.1			22.7			(82.0		)	508.7

	Depreciation and amortization expense	(72.3		)	(32.8		)	(6.5		)	(44.3		)	(155.9		)

	Nine Months Ended September 30, 2013:
	Net sales	$	4,407.10		$	3,174.00		$	474.2		$	—		$	8,055.30

	Income (loss) from operations	260.5			185.8			18.6			(98.3		)	366.6

	Depreciation and amortization expense	(73.1		)	(33.1		)	(6.6		)	(43.5		)	(156.3		)

Supplemental_Guarantor_Informa1

Supplemental Guarantor Information (Tables)	9 Months Ended
	Sep. 30, 2014
Supplemental Guarantor Information [Abstract]	'
Condensed Consolidating Balance Sheets	'
	Condensed Consolidating Balance Sheet

	31-Dec-13
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Assets

	Current assets:
	Cash and cash equivalents	$	—			$	196.5			$	—			$	14			$	—		$	(22.4	)		$	188.1

	Accounts receivable, net	—				—				1,375.90				75.1				—			—				1,451.00

	Merchandise inventory	—				—				378.9				3.1				—			—				382

	Miscellaneous receivables	—				49.9				91				5.4				—			—				146.3

	Prepaid expenses and other	—				10.7				33.4				5.1				—			(3.1		)		46.1

	Total current assets	—				257.1				1,879.20				102.7				—			(25.5		)		2,213.50


	Property and equipment, net	—				69.7				59.6				1.8				—			—				131.1

	Goodwill	—				751.9				1,439.00				29.4				—			—				2,220.30

	Other intangible assets, net	—				338.5				982.8				6.7				—			—				1,328.00

	Deferred financing costs, net	—				30.1				—				—				—			—				30.1

	Other assets	4.9				1.4				0.1				0.9				—			(5.7		)		1.6

	Investment in and advances to subsidiaries	706.8				2,909.40				—				—				—			(3,616.2		)		—

	Total assets	$	711.7			$	4,358.10			$	4,360.70			$	141.5			$	—		$	(3,647.4	)		$	5,924.60


	Liabilities and Shareholders’ Equity

	Current liabilities:
	Accounts payable-trade	$	—			$	21.4			$	637.3			$	26.5			$	—		$	(22.4	)		$	662.8

	Accounts payable-inventory financing	—				—				256.6				—				—			—				256.6

	Current maturities of long-term debt	—				45.4				—				—				—			—				45.4

	Deferred revenue	—				—				89.9				4.9				—			—				94.8

	Accrued expenses	—				163.5				175.1				7.5				—			(3.1		)		343

	Total current liabilities	—				230.3				1,158.90				38.9				—			(25.5		)		1,402.60


	Long-term liabilities:
	Debt	—				3,205.80				—				—				—			—				3,205.80

	Deferred income taxes	—				178.3				388.4				1.6				—			(4.8		)		563.5

	Other liabilities	—				36.9				3.6				1.4				—			(0.9		)		41

	Total long-term liabilities	—				3,421.00				392				3				—			(5.7		)		3,810.30


	Total shareholders’ equity	711.7				706.8				2,809.80				99.6				—			(3,616.2		)		711.7

Total liabilities and shareholders' equity	$	711.7			$	4,358.10			$	4,360.70			$	141.5			$	—		$	(3,647.4	)		$	5,924.60


Condensed Consolidating Balance Sheet

30-Sep-14
(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
	Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
Assets

Current assets:
Cash and cash equivalents	$	—			$	340			$	—			$	30.5			$	—		$	(12.7	)		$	357.8

Accounts receivable, net	—				—				1,410.10				63.1				—			—				1,473.20

Merchandise inventory	—				—				419.7				3.8				—			—				423.5

Miscellaneous receivables	—				58.8				110.8				5.8				—			—				175.4

Prepaid expenses and other	—				16.5				67.5				3.3				—			(1.0		)		86.3

Total current assets	—				415.3				2,008.10				106.5				—			(13.7		)		2,516.20


Property and equipment, net	—				74.3				56.1				1.3				—			—				131.7

Goodwill	—				751.9				1,439.00				27.7				—			—				2,218.60

Other intangible assets, net	—				322.8				878.5				5.7				—			—				1,207.00

Deferred financing costs, net	—				31.8				—				—				—			—				31.8

Other assets	4.4				2.1				—				1.4				—			(5.8		)		2.1

Investment in and advances to subsidiaries	889.6				2,826.30				—				—				—			(3,715.9		)		—

Total assets	$	894			$	4,424.50			$	4,381.70			$	142.6			$	—		$	(3,735.4	)		$	6,107.40


Liabilities and Shareholders’ Equity

Current liabilities:
Accounts payable—trade	$	—			$	18.6			$	748.5			$	23.5			$	—		$	(12.7	)		$	777.9

Accounts payable—inventory financing	—				—				299.7				—				—			—				299.7

Current maturities of	—				15.4				—				—				—			—				15.4
long-term debt
Deferred revenue	—				—				99.2				3.1				—			—				102.3

Accrued expenses	—				160				165.6				7.7				—			(1.0		)		332.3

Total current liabilities	—				194				1,313.00				34.3				—			(13.7		)		1,527.60


Long-term liabilities:
Debt	—				3,146.30				—				—				—			—				3,146.30

Deferred income taxes	—				153.9				344.4				1.5				—			(4.4		)		495.4

Other liabilities	—				40.7				3.6				1.2				—			(1.4		)		44.1

Total long-term liabilities	—				3,340.90				348				2.7				—			(5.8		)		3,685.80


Total shareholders’ equity	894				889.6				2,720.70				105.6				—			(3,715.9		)		894

Total liabilities and shareholders’ equity	$	894			$	4,424.50			$	4,381.70			$	142.6			$	—		$	(3,735.4	)		$	6,107.40

Consolidating Statements of Operations	'


	Consolidating Statement of Operations
	Nine Months Ended September 30, 2013
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Net sales	$	—			$	—			$	7,705.20			$	350.1			$	—		$	—			$	8,055.30

	Cost of sales	—				—				6,436.50				306.8				—			—				6,743.30

	Gross profit	—				—				1,268.70				43.3				—			—				1,312.00

	Selling and administrative expenses	24.4				73.9				725.4				26.6				—			—				850.3

	Advertising expense	—				—				92				3.1				—			—				95.1

	(Loss) income from operations	(24.4		)		(73.9		)		451.3				13.6				—			—				366.6

	Interest (expense) income, net	—				(199.0		)		0.2				0.2				—			—				(198.6		)

	Net loss on extinguishments of long-term debt	—				(55.5		)		—				—				—			—				(55.5		)

	Management fee	—				3.4				—				(3.4		)		—			—				—

	Other (expense) income, net	—				(0.5		)		0.6				0.3				—			—				0.4

	(Loss) income before income taxes	(24.4		)		(325.5		)		452.1				10.7				—			—				112.9

	Income tax benefit (expense)	9.2				121				(167.8		)		(2.5		)		—			—				(40.1		)

	(Loss) income before equity in earnings of subsidiaries	(15.2		)		(204.5		)		284.3				8.2				—			—				72.8

	Equity in earnings of subsidiaries	88				292.5				—				—				—			(380.5		)		—

	Net income	$	72.8			$	88			$	284.3			$	8.2			$	—		$	(380.5	)		$	72.8

	Consolidating Statement of Operations

	Three Months Ended September 30, 2014
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Net sales	$	—			$	—			$	3,140.60			$	125.5			$	—		$	—			$	3,266.10

	Cost of sales	—				—				2,648.80				110				—			—				2,758.80

	Gross profit	—				—				491.8				15.5				—			—				507.3

	Selling and administrative expenses	—				28.3				248.7				8.4				—			—				285.4

	Advertising expense	—				—				36.4				0.8				—			—				37.2

	(Loss) income from operations	—				(28.3		)		206.7				6.3				—			—				184.7

	Interest (expense) income, net	—				(50.2		)		0.1				—				—			—				(50.1		)

	Net loss on extinguishments of long-term debt	—				(45.8		)		—				—				—			—				(45.8		)

	Management fee	—				0.9				—				(0.9		)		—			—				—

	Other income (expense), net	—				—				0.6				0.1				—			—				0.7

	(Loss) income before income taxes	—				(123.4		)		207.4				5.5				—			—				89.5

Income tax benefit (expense)	—				46				(78.4		)		(1.5		)		—			—				(33.9		)

(Loss) income before equity in earnings of subsidiaries	—				(77.4		)		129				4				—			—				55.6

Equity in earnings of subsidiaries	55.6				133				—				—				—			(188.6		)		—

Net income	$	55.6			$	55.6			$	129			$	4			$	—		$	(188.6	)		$	55.6

Consolidating Statement of Operations

Nine Months Ended September 30, 2014
(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
	Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
Net sales	$	—			$	—			$	8,631.70			$	392.7			$	—		$	—			$	9,024.40

Cost of sales	—				—				7,248.70				346.3				—			—				7,595.00

Gross profit	—				—				1,383.00				46.4				—			—				1,429.40

Selling and administrative expenses	—				82				712.3				25.9				—			—				820.2

Advertising expense	—				—				97.8				2.7				—			—				100.5

(Loss) income from operations	—				(82.0		)		572.9				17.8				—			—				508.7

Interest (expense) income, net	—				(149.0		)		0.1				0.2				—			—				(148.7		)

Net loss on extinguishments of long-term debt	—				(53.8		)		—				—				—			—				(53.8		)

Management fee	—				2.9				—				(2.9		)		—			—				—

Other income (expense), net	—				0.1				1.4				(0.1		)		—			—				1.4

(Loss) income before income taxes	—				(281.8		)		574.4				15				—			—				307.6

Income tax benefit (expense)	—				105.1				(215.6		)		(4.0		)		—			—				(114.5		)

(Loss) income before equity in earnings of subsidiaries	—				(176.7		)		358.8				11				—			—				193.1

Equity in earnings of subsidiaries	193.1				369.8				—				—				—			(562.9		)		—

Net income	$	193.1			$	193.1			$	358.8			$	11			$	—		$	(562.9	)		$	193.1

Consolidating Statement of Operations

Three Months Ended September 30, 2013
(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
	Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
Net sales	$	—			$	—			$	2,753.40			$	110.9			$	—		$	—			$	2,864.30

Cost of sales	—				—				2,309.00				96.9				—			—				2,405.90

Gross profit	—				—				444.4				14				—			—				458.4

Selling and administrative expenses	24.4				20.6				278.6				8.8				—			—				332.4

Advertising expense	—				—				31.9				1.2				—			—				33.1

(Loss) income from operations	(24.4		)		(20.6		)		133.9				4				—			—				92.9

Interest (expense) income, net	—				(56.4		)		0.2				—				—			—				(56.2		)

Net loss on extinguishments of long-term debt	—				(41.3		)		—				—				—			—				(41.3		)

Management fee	—				1				—				(1.0		)		—			—				—

Other (expense) income, net	—				(0.4		)		0.2				—				—			—				(0.2		)

(Loss) income before income taxes	(24.4		)		(117.7		)		134.3				3				—			—				(4.8		)

Income tax benefit (expense)	9.2				43.6				(49.4		)		(0.8		)		—			—				2.6

(Loss) income before equity in earnings of subsidiaries	(15.2		)		(74.1		)		84.9				2.2				—			—				(2.2		)

Equity in earnings of subsidiaries	13				87.1				—				—				—			(100.1		)		—

Net income	$	(2.2	)		$	13			$	84.9			$	2.2			$	—		$	(100.1	)		$	(2.2	)

Condensed Consolidating Statements of Comprehensive Income (Loss)	'
	Condensed Consolidating Statement of Comprehensive Income

	Three Months Ended September 30, 2013
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Comprehensive income (loss)	$	(0.2	)		$	15			$	84.9			$	4.2			$	—		$	(104.1	)		$	(0.2	)



	Condensed Consolidating Statement of Comprehensive Income
	Nine Months Ended September 30, 2013
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Comprehensive income (loss)	$	69.1			$	84.2			$	284.3			$	4.5			$	—		$	(373.0	)		$	69.1

	Condensed Consolidating Statement of Comprehensive Income

	Three Months Ended September 30, 2014
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Comprehensive income (loss)	$	50.4			$	50.4			$	129			$	(1.2	)		$	—		$	(178.2	)		$	50.4



	Condensed Consolidating Statement of Comprehensive Income
	Nine Months Ended September 30, 2014
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Comprehensive income (loss)	$	187.7			$	187.7			$	358.8			$	5.6			$	—		$	(552.1	)		$	187.7

Condensed Consolidating Statements Cash Flows	'
	Condensed Consolidating Statement of Cash Flows

	Nine Months Ended September 30, 2013
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Net cash (used in) provided by operating activities	$	(15.2	)		$	(71.5	)		$	425.5			$	19			$	—		$	13			$	370.8

	Cash flows from investing activities:

	Capital expenditures	—				(27.2		)		(3.2		)		(0.1		)		—			—				(30.5		)

	Net cash used in investing activities	—				(27.2		)		(3.2		)		(0.1		)		—			—				(30.5		)

	Cash flows from financing activities:

	Proceeds from borrowings under revolving credit facility	—				63				—				—				—			—				63

	Repayments of borrowings under revolving credit facility	—				(63.0		)		—				—				—			—				(63.0		)

	Repayments of long-term debt	—				(47.2		)		—				—				—			—				(47.2		)

	Proceeds from issuance of long-term debt	—				1,535.20				—				—				—			—				1,535.20

	Payments to extinguish long-term debt	—				(1,885.9		)		—				—				—			—				(1,885.9		)

	Net change in accounts payable - inventory financing	—				—				(24.0		)		—				—			—				(24.0		)

	Prepayment of Incentive compensation plan withholding taxes	—				(4.0		)		(19.6		)		(0.5		)		—			—				(24.1		)

	Net proceeds from issuance of common shares	424.7				—				—				—				—			—				424.7

	Advances from (to) affiliates	(409.5		)		788.1				(378.7		)		0.1				—			—				—

	Other financing activities	—				(6.1		)		—				—				—			—				(6.1		)

	Net cash provided by (used in) financing activities	15.2				380.1				(422.3		)		(0.4		)		—			—				(27.4		)

	Effect of exchange rate changes on cash and cash equivalents	—				—				—				(0.6		)		—			—				(0.6		)

	Net increase in cash and cash equivalents	—				281.4				—				17.9				—			13				312.3

	Cash and cash equivalents—beginning of period	—				48				—				9.8				—			(19.9		)		37.9

	Cash and cash equivalents—end of period	$	—			$	329.4			$	—			$	27.7			$	—		$	(6.9	)		$	350.2

	Condensed Consolidating Statement of Cash Flows

	Nine Months Ended September 30, 2014
	(in millions)	Parent				Subsidiary				Guarantor				Non-Guarantor				Co-Issuer			Consolidating				Consolidated
		Guarantor				Issuer				Subsidiaries				Subsidiary							Adjustments
	Net cash (used in) provided by operating activities	$	—			$	(127.2	)		$	450.9			$	17.1			$	—		$	9.7			$	350.5

	Cash flows from investing activities:
	Capital expenditures	—				(29.9		)		(4.5		)		—				—			—				(34.4		)

	Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	—				(20.9		)		—				—				—			—				(20.9		)

	Premium payments on interest rate cap agreements	—				(0.7		)		—				—				—			—				(0.7		)

	Net cash used in investing activities	—				(51.5		)		(4.5		)		—				—			—				(56.0		)

	Cash flows from financing activities:
	Repayments of long-term debt	—				(11.6		)		—				—				—			—				(11.6		)

Proceeds from the issuance of long-term debt	—				600				—				—				—			—				600

Payments to extinguish long-term debt	—				(723.9		)		—				—				—			—				(723.9		)

Payments of debt financing costs	—				(14.4		)		—				—				—			—				(14.4		)

Net change in accounts payable-inventory financing	—				—				43.1				—				—			—				43.1

Proceeds from stock option exercises	—				1.1				—				—				—			—				1.1

Proceeds from Coworker Stock Purchase Plan	—				3.7				—				—				—			—				3.7

Dividends paid	(21.9		)		—				—				—				—			—				(21.9		)

Excess tax benefits from equity-based compensation	—				0.2				—				—				—			—				0.2

Advances from (to) affiliates	21.9				467.1				(489.5		)		0.5				—			—				—

Net cash provided by (used in) financing activities	—				322.2				(446.4		)		0.5				—			—				(123.7		)

Effect of exchange rate changes on cash and cash equivalents	—				—				—				(1.1		)		—			—				(1.1		)

Net increase in cash and cash equivalents	—				143.5				—				16.5				—			9.7				169.7

Cash and cash equivalents—beginning of period	—				196.5				—				14				—			(22.4		)		188.1

Cash and cash equivalents—end of period	$	—			$	340			$	—			$	30.5			$	—		$	(12.7	)		$	357.8

Inventory_Financing_Agreements2

Inventory Financing Agreements (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Inventory Financing Agreements [Line Items]	'	'
Accounts payable-inventory financing	$299.70	$256.60
Accounts Payable, Inventory Financing [Member]	'	'
Inventory Financing Agreements [Line Items]	'	'
Revolving Loan inventory financing agreement	298.8	256.1
Other inventory financing agreements	0.9	0.5
Accounts payable-inventory financing	299.7	256.6
Previous Revolving Credit Facility [Member] \| Accounts Payable, Inventory Financing [Member]	'	'
Inventory Financing Agreements [Line Items]	'	'
Floorplan sub-facility	$400	'

LongTerm_Debt_Debt_Balances_an

Long-Term Debt -Debt Balances and Interest Rates (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Jul. 31, 2013

Apr. 29, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Aug. 05, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

In Millions, unless otherwise specified

Revolving Loan [Member]

Term Loan [Member]

Senior Secured Notes, due 2018 [Member]

Senior notes due 2019 [Member]

Senior Notes due 2022 [Member]

Senior Notes [Member]

Subordinated Debt [Member]

LIBOR [Member]

Term Loan [Member]

Debt Instrument [Line Items]

Debt, short-term and long-term

$1,517.40

$1,528.90

$325

$1,045.30

$1,305

$600

$92.50

Discount, Unamortized

-3.9

-4.4

-1.4

-3.4

Premium, unamortized

2.9

4.2

Debt, total short-term and long-term

3,161.70

3,251.20

Current maturities of long-term debt

-15.4

-45.4

Debt

$3,146.30

$3,205.80

Long-term Debt, Weighted Average Interest Rate

0.00%

[1]

3.25%

[1]

0.00%

[1]

8.50%

[1]

6.00%

[1]

0.00%

[1]

3.25%

[1]

Interest rate at SeptemberB 30, 2014

LongTerm_Debt_Revolving_Loan_D

Long-Term Debt -Revolving Loan (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Revolving Loan [Member]

Letter of Credit [Member]

Previous Revolving Credit Facility [Member]

Accounts Payable, Inventory Financing [Member]

Lower Utilization [Member]

Higher Utilization [Member]

Minimum [Member]

Maximum [Member]

Cap agreement effective January 14, 2015-2017 [Member]

Revolving Loan [Member]

Previous Revolving Credit Facility [Member]

LIBOR [Member]

ABR [Member]

LIBOR [Member]

ABR [Member]

Revolving Loan [Member]

Debt Instrument [Line Items]

Interest Rate Cap, fair value

$600,000

Variable Interest Rate Margin

1.50%

0.50%

2.00%

1.00%

Potential Margin Reduction

0.25%

Debt, short-term and long-term

Undrawn letters of credit

2,200,000

Floorplan sub-facility, reserve

292,500,000

Amount owed under Revolving loan financing agreement

292,500,000

Revolving Loan inventory financing agreement

298,800,000

256,100,000

Floorplan sub-facility, variation between balance in financials and balance per financial intermediary due to timing differences in reporting

6,300,000

Revolving Commitment

1,250,000,000

900,000,000

Line Of Credit Facility, Maximum Aggregate Increase

300,000,000

200,000,000

Revolving Loan Maturity Acceleration Provision, Days Prior to Maturity

'45 days

Revolving Loan Maturity Acceleration Provision, Excess Cash Availability Limit, Amount Plus Maturing Debt

150,000,000

Borrowing Base

1,408,100,000

Availability under Revolving Loan

955,300,000

Line of Credit Facility, Fee on Unused Portion, Basis Points

37.5

Line of Credit Facility, Decrease in Applicable Interest Rate Margin

Net loss on extinguishments of long-term debt

-45,800,000

-41,300,000

-53,800,000

-55,500,000

-400,000

Deferred Finance Costs, Net

6,400,000

Floorplan sub-facility

400,000,000

Percentage reserve for open orders under financing agreement

15.00%

Variable Interest Rate, ABR Determination, Basis Point Plus Federal Funds Effective Rate

Minimum Liquidity Condition, Cash Availability

125,000,000

Cash Availability, Percentage of Borrowing Base

10.00%

Minimum Liquidity Condition, Amount

$100,000,000

Fixed Charge Coverage Ratio

LongTerm_Debt_Term_Loan_Detail

Long-Term Debt -Term Loan (Details) (USD $)

3 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jul. 02, 2013

Jul. 31, 2013

Apr. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Apr. 29, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Apr. 29, 2013

Sep. 30, 2014

Term Loan [Member]

Revolving Loan [Member]

Prior Term Loan Facility [Member]

Accounts Payable, Inventory Financing [Member]

ABR [Member]

LIBOR [Member]

Revolving Loan [Member]

Minimum [Member]

Maximum [Member]

Term Loan [Member]

Minimum [Member]

Maximum [Member]

Term Loan [Member]

Revolving Loan [Member]

Term Loan [Member]

Revolving Loan [Member]

Term Loan [Member]

Revolving Loan [Member]

Term Loan [Member]

Revolving Loan [Member]

Debt Instrument [Line Items]

Variable Interest Rate Margin

1.25%

0.50%

1.50%

1.00%

2.25%

1.50%

2.50%

2.00%

Floorplan sub-facility, variation between balance in financials and balance per financial intermediary due to timing differences in reporting

$6,300,000

Proceeds from Issuance of Long-term Debt

600,000,000

1,535,200,000

1,350,000,000

Debt, short-term and long-term

1,517,400,000

1,528,900,000

1,299,500,000

Proceeds from exercise in full of overallotment option

56,000,000

Net leverage ratio

3.2

Long-term Debt, Weighted Average Interest Rate

3.25%

[1]

0.00%

[1]

3.25%

[1]

Term Loan Repayments

40,000,000

Discount, percent of par

99.25%

99.75%

Discount, Unamortized

1,400,000

3,900,000

4,400,000

3,400,000

Variable Interest Rate, ABR Determination, Percentage Plus One-Month LIBOR

1.00%

Net loss on extinguishments of long-term debt

-45,800,000

-41,300,000

-53,800,000

-55,500,000

-10,300,000

-400,000

Proceeds from Issuance of Debt

190,000,000

Deferred Finance Costs, Net

$6,100,000

$6,400,000

Quarterly amortization payment of original principal, Percent

0.25%

[1]

Interest rate at SeptemberB 30, 2014

LongTerm_Debt_Interest_Rate_Ca

Long-Term Debt -Interest Rate Caps (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
	Sep. 30, 2014	Sep. 30, 2013	Cap agreement effective January 14, 2013-2015 [Member]	Cap agreement effective January 14, 2013-2015 [Member]	Cap agreement effective January 14, 2015-2017 [Member]	Interest Rate Cap Purchased During 2011 [Member]	Interest Rate Cap Purchased During 2012 [Member]	Interest rate cap purchased during 2014 [Member]
Derivative [Line Items]	'	'	'	'	'	'	'	'
Derivative, Notional Amount	'	'	$1,150	'	'	$500	$650	$250
Interest rate cap agreements premiums paid	0.7	0	'	'	'	'	'	'
Interest Rate Cap, cap rate	'	'	'	'	'	3.50%	1.50%	2.00%
Interest Rate Cap, fair value	'	'	$0	$0	$0.60	'	'	'

LongTerm_Debt_Senior_Secured_N

Long-Term Debt -Senior Secured Notes (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Aug. 05, 2014	Dec. 31, 2013	Jul. 02, 2013
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Senior Secured Notes, due 2018 [Member]	Senior Secured Notes, due 2018 [Member]	Senior Secured Notes, due 2018 [Member]	Senior Secured Notes, due 2018 [Member]	Senior Secured Notes, due 2018 [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'
Extinguishment of Debt, Accrued Interest Paid to Lenders	'	'	'	'	'	'	'	'	$700,000
Write off of Deferred Debt Issuance Cost	'	'	'	'	4,000,000	2,700,000	'	'	'
Net loss on extinguishments of long-term debt	-45,800,000	-41,300,000	-53,800,000	-55,500,000	23,700,000	-16,700,000	'	'	'
Extinguishment of Debt, Fees Paid to Lenders	'	'	'	'	13,000,000	14,000,000	'	'	'
Extinguishment of Debt, Make-whole Interest Payment	'	'	'	'	6,700,000	'	'	'	'
Long-term Debt, stated interest rate	'	'	'	'	8.00%	'	'	'	'
Debt, short-term and long-term	'	'	'	'	0	'	'	325,000,000	'
Debt Instrument, Repurchased Face Amount	'	'	'	'	'	'	$325,000,000	'	$175,000,000
Redemption Premium, percentage of par value	'	'	'	'	'	'	0.00%	'	108.00%

LongTerm_Debt_Senior_Notes_Det

Long-Term Debt -Senior Notes (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Aug. 05, 2014

Sep. 30, 2014

Aug. 05, 2014

Mar. 20, 2014

Dec. 31, 2013

Senior Notes due 2022 [Member]

Senior Notes [Member]

Senior notes due 2019 [Member]

Debt Instrument [Line Items]

Extinguishment of Debt, Accrued Interest Paid to Lenders

$1,000,000

Net loss on extinguishments of long-term debt

-45,800,000

-41,300,000

-53,800,000

-55,500,000

22,100,000

2,700,000

Long-term Debt, stated interest rate

6.00%

8.50%

Debt, short-term and long-term

600,000,000

1,045,300,000

1,305,000,000

Deferred financing costs, net

31,800,000

30,100,000

8,000,000

Long-term Debt, Weighted Average Interest Rate

6.00%

[1]

8.50%

[1]

8.50%

[1]

Premium, unamortized

2,900,000

4,200,000

Debt Instrument, Repurchased Face Amount

234,700,000

25,000,000

Redemption Premium, percentage of par value

108.80%

109.75%

Extinguishment of Debt, Fees Paid to Lenders

10,000,000

2,400,000

Extinguishment of Debt, Make-whole Interest Payment

10,600,000

Write off of Deferred Debt Issuance Cost

2,200,000

300,000

Write off of Deferred Debt issuance Cost, unamortized premium

700,000

Debt Instrument, Repurchase Amount

$234,700,000

[1]

Interest rate at SeptemberB 30, 2014

LongTerm_Debt_Senior_Subordina

Long-Term Debt Senior Subordinated Notes (Details) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

9-May-14

Mar. 08, 2013

Feb. 28, 2014

Sep. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

9-May-14

Feb. 21, 2014

Jan. 22, 2014

Oct. 18, 2013

Aug. 01, 2013

Mar. 08, 2013

Mar. 10, 2010

Sep. 30, 2014

Sep. 30, 2013

Aug. 05, 2014

Dec. 31, 2013

Jul. 02, 2013

Aug. 01, 2013

Subordinated Debt [Member]

Senior Subordinated Notes [Member]

Senior Secured Notes, due 2018 [Member]

IPO Proceeds [Member]

Term Loan Incremental Borrowings [Member]

Subordinated Debt [Member]

Debt Instrument [Line Items]

Long-term Debt, stated interest rate

12.54%

8.00%

Debt, short-term and long-term

$92,500,000

$325,000,000

Senior Subordinated Notes, repurchased amount

50,000,000

42,500,000

20,000,000

30,000,000

155,000,000

324,000,000

50,000,000

28,500,000

325,000,000

175,000,000

146,000,000

178,000,000

Redemption Premium, percentage of par value

104.18%

106.27%

0.00%

108.00%

Extinguishment of Debt, Fees Paid to Lenders

1,800,000

3,100,000

2,100,000

6,500,000

20,300,000

13,000,000

14,000,000

Write off of Deferred Debt Issuance Cost

800,000

600,000

400,000

2,000,000

4,300,000

4,000,000

2,700,000

Extinguishment of Debt, Accrued Interest Paid to Lenders

400,000

1,900,000

200,000

12,000,000

2,500,000

700,000

Net loss on extinguishments of long-term debt

$45,800,000

$41,300,000

$53,800,000

$55,500,000

$3,900,000

($2,200,000)

$2,700,000

$8,500,000

$24,600,000

($23,700,000)

$16,700,000

LongTerm_Debt_Fair_Value_of_Lo

Long-Term Debt -Fair Value of Long-Term Debt (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013	Jul. 31, 2013	Apr. 29, 2013
In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013	Jul. 31, 2013	Apr. 29, 2013
Term Loan [Member]	'		'	'	'
Fair Value [Line Items]	'		'	'	'
Long-term Debt, Weighted Average Interest Rate	3.25%	[1]	'	'	'
Debt, short-term and long-term	$1,517.40		$1,528.90	'	'
Discount, Unamortized	3.9		4.4	1.4	3.4
Senior notes due 2019 [Member]	'		'	'	'
Fair Value [Line Items]	'		'	'	'
Long-term Debt, Weighted Average Interest Rate	8.50%	[1]	'	'	'
Debt, short-term and long-term	1,045.30		1,305	'	'
Premium, unamortized	2.9		4.2	'	'
Carrying (Reported) Amount, Fair Value Disclosure [Member]	'		'	'	'
Fair Value [Line Items]	'		'	'	'
Debt, short-term and long-term	3,162.70		'	'	'
Fair Value, Inputs, Level 2 [Member]	'		'	'	'
Fair Value [Line Items]	'		'	'	'
Long-term Debt, fair value disclosures	$3,213.30		'	'	'

[1]	Interest rate at SeptemberB 30, 2014

Income_Taxes_Details

Income Taxes (Details)	3 Months Ended		9 Months Ended
Income Taxes (Details)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Effective Income Tax Rate	37.90%	54.60%	37.20%	35.50%

Shareholders_Equity_Details

Shareholders Equity (Details) (USD $)

1 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

Jun. 30, 2013

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Jul. 02, 2013

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Jul. 31, 2013

Coworker Stock Purchase Plan [Member]

Secondary offering over-allotment [Member]

Secondary Offering [Member]

IPO Over-allotment [Member]

IPO [Member]

Class of Stock [Line Items]

Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date

5.00%

Allocated Share-based Compensation Expense

$3,900,000

$40,300,000

$44,300,000

Stock Issued During Period, Shares, New Issues

3,487,500

23,250,000

Share Price

$17

Proceeds from Issuance Initial Public Offering

424,700,000

Shares sold by certain selling stockholders

[1],[2]

2,250,000

[1]

1,500,000

[1]

2,250,000

[1]

15,000,000

10,000,000

15,000,000

Secondary-offering related expenses

300,000

500,000

400,000

1,200,000

600,000

Proceeds from shares sold by certain selling stockholders

Stockholders' Equity Note, Stock Split, Conversion Ratio

143.0299613

Common shares, par value

$0.01

[1]

Under each underwriting agreement, the selling stockholders granted the underwriters an option, exercisable for thirty days, to purchase up to the additional amount of shares noted.

[2]

The option to purchase additional shares was not exercised in connection with the September 2014 secondary offering.

Shareholders_Equity_Dividends_

Shareholders Equity Dividends (Details) (USD $)	3 Months Ended							9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2014	Sep. 30, 2013
Dividends Payable [Line Items]	'	'	'	'	'	'	'	'	'
Common Stock, Dividends, Per Share, Cash Paid	$0.04	$0.04	$0.04	$0.04	$0	$0	'	$0.13	$0
Dividends, Common Stock, Cash	$7.30	$7.30	$7.30	$7.30	$0	$0	$0	'	'

Shareholders_Equity_IPO_and_Se

Shareholders Equity IPO and Secondary-Offering-Related Expenses Table (Details) (USD $)	3 Months Ended				9 Months Ended				12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
IPO and Secondary-Offering- Related Expenses [Line Items]	'		'		'		'		'
Accelerated share based compensation expense and related employer payroll taxes	$0		$40.70		$0		$40.70		'
Charge for payment of RDU Plan cash retention pool	0		7.5		0		7.5		7.5
Net proceeds used for termination of management services agreement	0		24.4		0		24.4		'
Other IPO Related Expenses	0.3	[1]	1.5	[1]	1.2	[1]	1.7	[1]	'
IPO and Secondary-offering related expenses	$0.30		$74.10		$1.20		$74.30		'

[1]	Other expenses include secondary-offering expenses of $0.3 million and $1.2 million for the three and nine months ended September 30, 2014, respectively. There were no secondary-offering expenses recognized during the three and nine months ended September 30, 2013.

EquityBased_Compensation_Detai

Equity-Based Compensation (Details) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Restricted Stock [Member]

Restricted Stock Units (RSUs) [Member]

Employee Stock Option [Member]

Performance Shares [Member]

Minimum [Member]

Maximum [Member]

Equity-Based Compensation Plan Activity [Line Items]

Allocated Share-based Compensation Expense

$3,900,000

$40,300,000

$44,300,000

Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost

36,700,000

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

'3 years 0 months 0 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance

1,280,255

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

1,244,386

Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period

-9,264

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period

-63,432

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance

2,451,945

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Number

524,824

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number

524,824

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number

1,874,216

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price

$20.72

$17

Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price

$24.39

Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price

$24.29

Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price

$17

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Weighted Average Exercise Price

$17

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

$17

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price

$21.75

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term

'8 years 6 months 20 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Weighted Average Remaining Contractual Term

'7 years 5 months 21 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term

'7 years 5 months 21 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term

'8 years 10 months 6 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value

800,000

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value

25,300,000

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Aggregate Intrinsic Value

7,400,000

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value

7,400,000

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value

17,400,000

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value

$7.23

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate

30.00%

[1]

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate

1.77%

[2]

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate

0.70%

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term

'6 years 0 months

[3]

Restricted Stock Unit, Plan Activity [Roll Forward]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, RSU Beginning Balance

1,351,572

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

3,798,508

25,844

416,590

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period

-1,737,866

-1,528

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period

-7,122

-101,069

-3,100

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, RSU Ending Balance

847,045

1,274,819

413,490

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value

$17.18

$17.04

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value

$24.29

$24.39

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value

$17

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value

$17

$24.29

Percentage of shares expected to vest

0.00%

200.00%

Equity-based compensation expense, not yet recognized

$30,300,000

Equity-based compensation expense, not yet recognized, period for recognition

'2 years 5 months 25 days

[1]

Based upon an assessment of the two-year, five-year and implied volatility for the Companybs selected peer group, adjusted for the Companybs leverage.

[2]

Based on a composite U.S. Treasury rate.

[3]

The expected term is calculated using theB simplified method. TheB simplified methodB defines the expected term as the average of the optionbs contractual term and the optionbsB weighted-averageB vesting period. The Company utilizes this method as it has limited historical stock option data that is sufficient to derive a reasonable estimate of the expected stock option term.

Earnings_per_Share_Details

Earnings per Share (Details)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Weighted Average Shares - Basic	170.9	166.8	170.2	152.5
Effect of dilutive securities	2.1	0	2.5	1.8
Weighted Average Shares - Diluted	173	166.8	172.7	154.3
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	'	6.3	'	0.1

Deferred_Compensation_Plan_Det

Deferred Compensation Plan (Details) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Aug. 01, 2013

9-May-14

Mar. 31, 2014

Feb. 21, 2014

Jan. 22, 2014

Oct. 18, 2013

Aug. 01, 2013

Mar. 08, 2013

Mar. 10, 2010

Sep. 30, 2014

Mar. 31, 2016

Subordinated Debt [Member]

2014 [Member]

2015 through 2017 [Member]

Scenario, Actual [Member]

Debt Instrument, Repurchased Face Amount

$42,500,000

$50,000,000

$20,000,000

$30,000,000

$155,000,000

$324,000,000

$50,000,000

$28,500,000

RDU Plan, units authorized for issuance

28,500

RDU Plan, units outstanding

28,500

Deferred Compensation Arrangement with Individual, Requisite Service Period

'3 years 0 months 0 days

Redemption premium added to debt face amount, RDU plan

100,000

1,400,000

RDU plan cash retention pool

15,000,000

Charge for payment of RDU Plan cash retention pool

7,500,000

Second RDU Cash Retention Payment

7,500,000

RDU Plan, unrecognized compensation expense

2,000,000

7,000,000

RDU Plan, compensation expense

2,200,000

10,400,000

6,600,000

14,700,000

RDU Plan, liability

$28,200,000

$21,800,000

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Net Sales	$3,266.10	$2,864.30	$9,024.40	$8,055.30
Number of Reportable Segments	2	'	'	'
Number of operating segments which do not meet reportable unit quantitative threshold	2	'	'	'
Income (loss) from operations	184.7	92.9	508.7	366.6
Depreciation and amortization expense	-51.8	-52	-155.9	-156.3
Corporate Segment: Private Sector Business [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net Sales	1,622.70	1,465.80	4,784.50	4,407.10
Income (loss) from operations	103.2	63.2	323.9	260.5
Depreciation and amortization expense	-24.1	-24.3	-72.3	-73.1
Public [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net Sales	1,468.80	1,244.60	3,710.30	3,174
Income (loss) from operations	101.3	71.1	244.1	185.8
Depreciation and amortization expense	-10.9	-11	-32.8	-33.1
Other [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net Sales	174.6	153.9	529.6	474.2
Income (loss) from operations	8.5	3.7	22.7	18.6
Depreciation and amortization expense	-2.2	-2.1	-6.5	-6.6
Headquarters [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net Sales	0	0	0	0
Income (loss) from operations	-28.3	-45.1	-82	-98.3
Depreciation and amortization expense	($14.60)	($14.60)	($44.30)	($43.50)

Supplemental_Guarantor_Informa2

Supplemental Guarantor Information -Condensed Consolidating Balance Sheets (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	$357.80	$188.10	$350.20	$37.90
Accounts receivable, net of allowance for doubtful accounts	1,473.20	1,451	'	'
Merchandise inventory	423.5	382	'	'
Miscellaneous receivables	175.4	146.3	'	'
Prepaid expenses and other	86.3	46.1	'	'
Total current assets	2,516.20	2,213.50	'	'
Property and equipment, net	131.7	131.1	'	'
Goodwill	2,218.60	2,220.30	'	'
Other intangible assets, net	1,207	1,328	'	'
Deferred financing costs, net	31.8	30.1	'	'
Other assets	2.1	1.6	'	'
Total assets	6,107.40	5,924.60	'	'
Accounts payable-trade	777.9	662.8	'	'
Accounts payable-inventory financing	299.7	256.6	'	'
Current maturities of long-term debt	15.4	45.4	'	'
Deferred revenue	102.3	94.8	'	'
Total current liabilities	1,527.60	1,402.60	'	'
Debt	3,146.30	3,205.80	'	'
Deferred income taxes	495.4	563.5	'	'
Other liabilities	44.1	41	'	'
Total long-term liabilities	3,685.80	3,810.30	'	'
Total shareholders' equity (deficit)	894	711.7	'	'
Total liabilities and shareholders' equity (deficit)	6,107.40	5,924.60	'	'
Parent Guarantor [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts receivable, net of allowance for doubtful accounts	0	0	'	'
Merchandise inventory	0	0	'	'
Miscellaneous receivables	0	0	'	'
Prepaid expenses and other	0	0	'	'
Total current assets	0	0	'	'
Property and equipment, net	0	0	'	'
Goodwill	0	0	'	'
Other intangible assets, net	0	0	'	'
Deferred financing costs, net	0	0	'	'
Other assets	4.4	4.9	'	'
Investment from and advances to subsidiaries	889.6	706.8	'	'
Total assets	894	711.7	'	'
Accounts payable-trade	0	0	'	'
Accounts payable-inventory financing	0	0	'	'
Current maturities of long-term debt	0	0	'	'
Deferred revenue	0	0	'	'
Accrued Expenses	0	0	'	'
Total current liabilities	0	0	'	'
Debt	0	0	'	'
Deferred income taxes	0	0	'	'
Other liabilities	0	0	'	'
Total long-term liabilities	0	0	'	'
Total shareholders' equity (deficit)	894	711.7	'	'
Total liabilities and shareholders' equity (deficit)	894	711.7	'	'
Subsidiary Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	340	196.5	329.4	48
Accounts receivable, net of allowance for doubtful accounts	0	0	'	'
Merchandise inventory	0	0	'	'
Miscellaneous receivables	58.8	49.9	'	'
Prepaid expenses and other	16.5	10.7	'	'
Total current assets	415.3	257.1	'	'
Property and equipment, net	74.3	69.7	'	'
Goodwill	751.9	751.9	'	'
Other intangible assets, net	322.8	338.5	'	'
Deferred financing costs, net	31.8	30.1	'	'
Other assets	2.1	1.4	'	'
Investment from and advances to subsidiaries	2,826.30	2,909.40	'	'
Total assets	4,424.50	4,358.10	'	'
Accounts payable-trade	18.6	21.4	'	'
Accounts payable-inventory financing	0	0	'	'
Current maturities of long-term debt	15.4	45.4	'	'
Deferred revenue	0	0	'	'
Accrued Expenses	160	163.5	'	'
Total current liabilities	194	230.3	'	'
Debt	3,146.30	3,205.80	'	'
Deferred income taxes	153.9	178.3	'	'
Other liabilities	40.7	36.9	'	'
Total long-term liabilities	3,340.90	3,421	'	'
Total shareholders' equity (deficit)	889.6	706.8	'	'
Total liabilities and shareholders' equity (deficit)	4,424.50	4,358.10	'	'
Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts receivable, net of allowance for doubtful accounts	1,410.10	1,375.90	'	'
Merchandise inventory	419.7	378.9	'	'
Miscellaneous receivables	110.8	91	'	'
Prepaid expenses and other	67.5	33.4	'	'
Total current assets	2,008.10	1,879.20	'	'
Property and equipment, net	56.1	59.6	'	'
Goodwill	1,439	1,439	'	'
Other intangible assets, net	878.5	982.8	'	'
Deferred financing costs, net	0	0	'	'
Other assets	0	0.1	'	'
Investment from and advances to subsidiaries	0	0	'	'
Total assets	4,381.70	4,360.70	'	'
Accounts payable-trade	748.5	637.3	'	'
Accounts payable-inventory financing	299.7	256.6	'	'
Current maturities of long-term debt	0	0	'	'
Deferred revenue	99.2	89.9	'	'
Accrued Expenses	165.6	175.1	'	'
Total current liabilities	1,313	1,158.90	'	'
Debt	0	0	'	'
Deferred income taxes	344.4	388.4	'	'
Other liabilities	3.6	3.6	'	'
Total long-term liabilities	348	392	'	'
Total shareholders' equity (deficit)	2,720.70	2,809.80	'	'
Total liabilities and shareholders' equity (deficit)	4,381.70	4,360.70	'	'
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	30.5	14	27.7	9.8
Accounts receivable, net of allowance for doubtful accounts	63.1	75.1	'	'
Merchandise inventory	3.8	3.1	'	'
Miscellaneous receivables	5.8	5.4	'	'
Prepaid expenses and other	3.3	5.1	'	'
Total current assets	106.5	102.7	'	'
Property and equipment, net	1.3	1.8	'	'
Goodwill	27.7	29.4	'	'
Other intangible assets, net	5.7	6.7	'	'
Deferred financing costs, net	0	0	'	'
Other assets	1.4	0.9	'	'
Investment from and advances to subsidiaries	0	0	'	'
Total assets	142.6	141.5	'	'
Accounts payable-trade	23.5	26.5	'	'
Accounts payable-inventory financing	0	0	'	'
Current maturities of long-term debt	0	0	'	'
Deferred revenue	3.1	4.9	'	'
Accrued Expenses	7.7	7.5	'	'
Total current liabilities	34.3	38.9	'	'
Debt	0	0	'	'
Deferred income taxes	1.5	1.6	'	'
Other liabilities	1.2	1.4	'	'
Total long-term liabilities	2.7	3	'	'
Total shareholders' equity (deficit)	105.6	99.6	'	'
Total liabilities and shareholders' equity (deficit)	142.6	141.5	'	'
Co-Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts receivable, net of allowance for doubtful accounts	0	0	'	'
Merchandise inventory	0	0	'	'
Miscellaneous receivables	0	0	'	'
Prepaid expenses and other	0	0	'	'
Total current assets	0	0	'	'
Property and equipment, net	0	0	'	'
Goodwill	0	0	'	'
Other intangible assets, net	0	0	'	'
Deferred financing costs, net	0	0	'	'
Other assets	0	0	'	'
Investment from and advances to subsidiaries	0	0	'	'
Total assets	0	0	'	'
Accounts payable-trade	0	0	'	'
Accounts payable-inventory financing	0	0	'	'
Current maturities of long-term debt	0	0	'	'
Deferred revenue	0	0	'	'
Accrued Expenses	0	0	'	'
Total current liabilities	0	0	'	'
Debt	0	0	'	'
Deferred income taxes	0	0	'	'
Other liabilities	0	0	'	'
Total long-term liabilities	0	0	'	'
Total shareholders' equity (deficit)	0	0	'	'
Total liabilities and shareholders' equity (deficit)	0	0	'	'
Consolidating Adjustments [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	-12.7	-22.4	-6.9	-19.9
Accounts receivable, net of allowance for doubtful accounts	0	0	'	'
Merchandise inventory	0	0	'	'
Miscellaneous receivables	0	0	'	'
Prepaid expenses and other	-1	-3.1	'	'
Total current assets	-13.7	-25.5	'	'
Property and equipment, net	'	0	'	'
Goodwill	0	0	'	'
Other intangible assets, net	0	0	'	'
Deferred financing costs, net	0	0	'	'
Other assets	-5.8	-5.7	'	'
Investment from and advances to subsidiaries	-3,715.90	-3,616.20	'	'
Total assets	-3,735.40	-3,647.40	'	'
Accounts payable-trade	-12.7	-22.4	'	'
Accounts payable-inventory financing	0	0	'	'
Current maturities of long-term debt	0	0	'	'
Deferred revenue	0	0	'	'
Accrued Expenses	-1	-3.1	'	'
Total current liabilities	-13.7	-25.5	'	'
Debt	0	0	'	'
Deferred income taxes	-4.4	-4.8	'	'
Other liabilities	-1.4	-0.9	'	'
Total long-term liabilities	-5.8	-5.7	'	'
Total shareholders' equity (deficit)	-3,715.90	-3,616.20	'	'
Total liabilities and shareholders' equity (deficit)	-3,735.40	-3,647.40	'	'
Consolidated [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Cash and cash equivalents	357.8	188.1	350.2	37.9
Accounts receivable, net of allowance for doubtful accounts	1,473.20	1,451	'	'
Merchandise inventory	423.5	382	'	'
Miscellaneous receivables	175.4	146.3	'	'
Prepaid expenses and other	86.3	46.1	'	'
Total current assets	2,516.20	2,213.50	'	'
Property and equipment, net	131.7	131.1	'	'
Goodwill	2,218.60	2,220.30	'	'
Other intangible assets, net	1,207	1,328	'	'
Deferred financing costs, net	31.8	30.1	'	'
Other assets	2.1	1.6	'	'
Investment from and advances to subsidiaries	0	0	'	'
Total assets	6,107.40	5,924.60	'	'
Accounts payable-trade	777.9	662.8	'	'
Accounts payable-inventory financing	299.7	256.6	'	'
Current maturities of long-term debt	15.4	45.4	'	'
Deferred revenue	102.3	94.8	'	'
Accrued Expenses	332.3	343	'	'
Total current liabilities	1,527.60	1,402.60	'	'
Debt	3,146.30	3,205.80	'	'
Deferred income taxes	495.4	563.5	'	'
Other liabilities	44.1	41	'	'
Total long-term liabilities	3,685.80	3,810.30	'	'
Total shareholders' equity (deficit)	894	711.7	'	'
Total liabilities and shareholders' equity (deficit)	$6,107.40	$5,924.60	'	'

Supplemental_Guarantor_Informa3

Supplemental Guarantor Information -Consolidating Statements of Operations (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	$3,266.10	$2,864.30	$9,024.40	$8,055.30
Cost of sales	2,758.80	2,405.90	7,595	6,743.30
Gross Profit	507.3	458.4	1,429.40	1,312
Selling and administrative expenses	285.4	332.4	820.2	850.3
Advertising expense	37.2	33.1	100.5	95.1
Income from operations	184.7	92.9	508.7	366.6
Interest Income (Expense), Net	50.1	56.2	148.7	198.6
Net loss on extinguishments of long-term debt	-45.8	-41.3	-53.8	-55.5
Other income (loss), net	0.7	-0.2	1.4	0.4
Income (loss) before income taxes	89.5	-4.8	307.6	112.9
Income Tax Expense (Benefit)	-33.9	2.6	-114.5	-40.1
Net income (loss)	55.6	-2.2	193.1	72.8
Parent Guarantor [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	0	0	0	0
Cost of sales	0	0	0	0
Gross Profit	0	0	0	0
Selling and administrative expenses	0	24.4	0	24.4
Advertising expense	0	0	0	0
Income from operations	0	-24.4	0	-24.4
Interest Income (Expense), Net	0	0	0	0
Net loss on extinguishments of long-term debt	0	0	0	0
Management Fee Income (Expense)	0	0	0	0
Other income (loss), net	0	0	0	0
Income (loss) before income taxes	0	-24.4	0	-24.4
Income Tax Expense (Benefit)	0	9.2	0	9.2
Income (Loss) before equity in earnings (loss) of subsidiaries	0	-15.2	0	-15.2
Equity in Earnings (Loss) of Subsidiaries	55.6	13	193.1	88
Net income (loss)	55.6	-2.2	193.1	72.8
Subsidiary Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	0	0	0	0
Cost of sales	0	0	0	0
Gross Profit	0	0	0	0
Selling and administrative expenses	28.3	20.6	82	73.9
Advertising expense	0	0	0	0
Income from operations	-28.3	-20.6	-82	-73.9
Interest Income (Expense), Net	-50.2	-56.4	-149	-199
Net loss on extinguishments of long-term debt	-45.8	-41.3	-53.8	-55.5
Management Fee Income (Expense)	0.9	1	2.9	3.4
Other income (loss), net	0	-0.4	0.1	-0.5
Income (loss) before income taxes	-123.4	-117.7	-281.8	-325.5
Income Tax Expense (Benefit)	46	43.6	105.1	121
Income (Loss) before equity in earnings (loss) of subsidiaries	-77.4	-74.1	-176.7	-204.5
Equity in Earnings (Loss) of Subsidiaries	133	87.1	369.8	292.5
Net income (loss)	55.6	13	193.1	88
Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	3,140.60	2,753.40	8,631.70	7,705.20
Cost of sales	2,648.80	2,309	7,248.70	6,436.50
Gross Profit	491.8	444.4	1,383	1,268.70
Selling and administrative expenses	248.7	278.6	712.3	725.4
Advertising expense	36.4	31.9	97.8	92
Income from operations	206.7	133.9	572.9	451.3
Interest Income (Expense), Net	0.1	0.2	0.1	0.2
Net loss on extinguishments of long-term debt	0	0	0	0
Management Fee Income (Expense)	0	0	0	0
Other income (loss), net	0.6	0.2	1.4	0.6
Income (loss) before income taxes	207.4	134.3	574.4	452.1
Income Tax Expense (Benefit)	-78.4	-49.4	-215.6	-167.8
Income (Loss) before equity in earnings (loss) of subsidiaries	129	84.9	358.8	284.3
Equity in Earnings (Loss) of Subsidiaries	0	0	0	0
Net income (loss)	129	84.9	358.8	284.3
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	125.5	110.9	392.7	350.1
Cost of sales	110	96.9	346.3	306.8
Gross Profit	15.5	14	46.4	43.3
Selling and administrative expenses	8.4	8.8	25.9	26.6
Advertising expense	0.8	1.2	2.7	3.1
Income from operations	6.3	4	17.8	13.6
Interest Income (Expense), Net	0	0	0.2	0.2
Net loss on extinguishments of long-term debt	0	0	0	0
Management Fee Income (Expense)	-0.9	-1	-2.9	-3.4
Other income (loss), net	0.1	0	-0.1	0.3
Income (loss) before income taxes	5.5	3	15	10.7
Income Tax Expense (Benefit)	-1.5	-0.8	-4	-2.5
Income (Loss) before equity in earnings (loss) of subsidiaries	4	2.2	11	8.2
Equity in Earnings (Loss) of Subsidiaries	0	0	0	0
Net income (loss)	4	2.2	11	8.2
Co-Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	0	0	0	0
Cost of sales	0	0	0	0
Gross Profit	0	0	0	0
Selling and administrative expenses	0	0	0	0
Advertising expense	0	0	0	0
Income from operations	0	0	0	0
Interest Income (Expense), Net	0	0	0	0
Net loss on extinguishments of long-term debt	0	0	0	0
Management Fee Income (Expense)	0	0	0	0
Other income (loss), net	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Income Tax Expense (Benefit)	0	0	0	0
Income (Loss) before equity in earnings (loss) of subsidiaries	0	0	0	0
Equity in Earnings (Loss) of Subsidiaries	0	0	0	0
Net income (loss)	0	0	0	0
Consolidating Adjustments [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	0	0	0	0
Cost of sales	0	0	0	0
Gross Profit	0	0	0	0
Selling and administrative expenses	0	0	0	0
Advertising expense	0	0	0	0
Income from operations	0	0	0	0
Interest Income (Expense), Net	0	0	0	0
Net loss on extinguishments of long-term debt	0	0	0	0
Management Fee Income (Expense)	0	0	0	0
Other income (loss), net	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Income Tax Expense (Benefit)	0	0	0	0
Income (Loss) before equity in earnings (loss) of subsidiaries	0	0	0	0
Equity in Earnings (Loss) of Subsidiaries	-188.6	-100.1	-562.9	-380.5
Net income (loss)	-188.6	-100.1	-562.9	-380.5
Consolidated [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net Sales	3,266.10	2,864.30	9,024.40	8,055.30
Cost of sales	2,758.80	2,405.90	7,595	6,743.30
Gross Profit	507.3	458.4	1,429.40	1,312
Selling and administrative expenses	285.4	332.4	820.2	850.3
Advertising expense	37.2	33.1	100.5	95.1
Income from operations	184.7	92.9	508.7	366.6
Interest Income (Expense), Net	-50.1	-56.2	-148.7	-198.6
Net loss on extinguishments of long-term debt	-45.8	-41.3	-53.8	-55.5
Management Fee Income (Expense)	0	0	0	0
Other income (loss), net	0.7	-0.2	1.4	0.4
Income (loss) before income taxes	89.5	-4.8	307.6	112.9
Income Tax Expense (Benefit)	-33.9	2.6	-114.5	-40.1
Income (Loss) before equity in earnings (loss) of subsidiaries	55.6	-2.2	193.1	72.8
Equity in Earnings (Loss) of Subsidiaries	0	0	0	0
Net income (loss)	$55.60	($2.20)	$193.10	$72.80

Supplemental_Guarantor_Informa4

Supplemental Guarantor Information -Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	$50.40	($0.20)	$187.70	$69.10
Parent Guarantor [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	50.4	-0.2	187.7	69.1
Subsidiary Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	50.4	15	187.7	84.2
Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	129	84.9	358.8	284.3
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	-1.2	4.2	5.6	4.5
Co-Issuer [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	0	0	0	0
Consolidating Adjustments [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	-178.2	-104.1	-552.1	-373
Consolidated [Member]	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Comprehensive income (loss)	$50.40	($0.20)	$187.70	$69.10

Supplemental_Guarantor_Informa5

Supplemental Guarantor Information -Condensed Consolidating Statements of Cash Flows (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	$350.50	$370.80
Capital expenditures	-34.4	-30.5
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	-20.9	0
Net cash used in investing activities	-56	-30.5
Proceeds from Lines of Credit	0	63
Repayments of Lines of Credit	0	-63
Repayments of long-term debt	-11.6	-47.2
Proceeds from Issuance of Long-term Debt	600	1,535.20
Repayments of Long-term Debt	-723.9	-1,885.90
Payments of Financing Costs	-14.4	-6
Net change in accounts payable-inventory financing	43.1	-24
Proceeds from Issuance of Common Stock	0	424.7
Proceeds from stock option exercises	1.1	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	3.7	0
Payments of Ordinary Dividends, Common Stock	-21.9	0
Excess Tax Benefit from Share-based Compensation, Financing Activities	0.2	0
Net cash used in financing activities	-123.7	-27.4
Effect of exchange rate changes on cash and cash equivalents	-1.1	-0.6
Net increase (decrease) in cash and cash equivalents	169.7	312.3
Cash and cash equivalents - beginning of period	188.1	37.9
Cash and cash equivalents - end of period	357.8	350.2
Parent Guarantor [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	0	-15.2
Capital expenditures	0	0
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	0	'
Payments for Derivative Instrument, Financing Activities	0	'
Net cash used in investing activities	0	0
Proceeds from Lines of Credit	'	0
Repayments of Lines of Credit	'	0
Repayments of long-term debt	0	0
Proceeds from Issuance of Long-term Debt	0	0
Repayments of Long-term Debt	0	0
Payments of Financing Costs	0	'
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes, employer portion	'	0
Proceeds from Issuance of Common Stock	'	424.7
Proceeds from stock option exercises	0	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	0	'
Payments of Ordinary Dividends, Common Stock	-21.9	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	'
Advances from (to) affiliates	21.9	-409.5
Other financing activities	'	0
Net cash used in financing activities	0	15.2
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents - beginning of period	0	0
Cash and cash equivalents - end of period	0	0
Subsidiary Issuer [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	-127.2	-71.5
Capital expenditures	-29.9	-27.2
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	-20.9	'
Payments for Derivative Instrument, Financing Activities	-0.7	'
Net cash used in investing activities	-51.5	-27.2
Proceeds from Lines of Credit	'	63
Repayments of Lines of Credit	'	-63
Repayments of long-term debt	-11.6	-47.2
Proceeds from Issuance of Long-term Debt	600	1,535.20
Repayments of Long-term Debt	-723.9	-1,885.90
Payments of Financing Costs	-14.4	'
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes, employer portion	'	-4
Proceeds from Issuance of Common Stock	'	0
Proceeds from stock option exercises	1.1	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	3.7	'
Payments of Ordinary Dividends, Common Stock	0	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0.2	'
Advances from (to) affiliates	467.1	788.1
Other financing activities	'	-6.1
Net cash used in financing activities	322.2	380.1
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	143.5	281.4
Cash and cash equivalents - beginning of period	196.5	48
Cash and cash equivalents - end of period	340	329.4
Guarantor Subsidiaries [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	450.9	425.5
Capital expenditures	-4.5	-3.2
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	0	'
Payments for Derivative Instrument, Financing Activities	0	'
Net cash used in investing activities	-4.5	-3.2
Proceeds from Lines of Credit	'	0
Repayments of Lines of Credit	'	0
Repayments of long-term debt	0	0
Proceeds from Issuance of Long-term Debt	0	0
Repayments of Long-term Debt	0	0
Payments of Financing Costs	0	'
Net change in accounts payable-inventory financing	43.1	-24
Payment of incentive compensation plan withholding taxes, employer portion	'	-19.6
Proceeds from Issuance of Common Stock	'	0
Proceeds from stock option exercises	0	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	0	'
Payments of Ordinary Dividends, Common Stock	0	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	'
Advances from (to) affiliates	-489.5	-378.7
Other financing activities	'	0
Net cash used in financing activities	-446.4	-422.3
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents - beginning of period	0	0
Cash and cash equivalents - end of period	0	0
Non-Guarantor Subsidiaries [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	17.1	19
Capital expenditures	0	-0.1
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	0	'
Payments for Derivative Instrument, Financing Activities	0	'
Net cash used in investing activities	0	-0.1
Proceeds from Lines of Credit	'	0
Repayments of Lines of Credit	'	0
Repayments of long-term debt	0	0
Proceeds from Issuance of Long-term Debt	0	0
Repayments of Long-term Debt	0	0
Payments of Financing Costs	0	'
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes, employer portion	'	-0.5
Proceeds from Issuance of Common Stock	'	0
Proceeds from stock option exercises	0	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	0	'
Payments of Ordinary Dividends, Common Stock	0	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	'
Advances from (to) affiliates	0.5	0.1
Other financing activities	'	0
Net cash used in financing activities	0.5	-0.4
Effect of exchange rate changes on cash and cash equivalents	-1.1	-0.6
Net increase (decrease) in cash and cash equivalents	16.5	17.9
Cash and cash equivalents - beginning of period	14	9.8
Cash and cash equivalents - end of period	30.5	27.7
Co-Issuer [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	0	0
Capital expenditures	0	0
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	0	'
Payments for Derivative Instrument, Financing Activities	0	'
Net cash used in investing activities	0	0
Proceeds from Lines of Credit	'	0
Repayments of Lines of Credit	'	0
Repayments of long-term debt	0	0
Proceeds from Issuance of Long-term Debt	0	0
Repayments of Long-term Debt	0	0
Payments of Financing Costs	0	'
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes, employer portion	'	0
Proceeds from Issuance of Common Stock	'	0
Proceeds from stock option exercises	0	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	0	'
Payments of Ordinary Dividends, Common Stock	0	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	'
Advances from (to) affiliates	0	0
Other financing activities	'	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents - beginning of period	0	0
Cash and cash equivalents - end of period	0	0
Consolidating Adjustments [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	9.7	13
Capital expenditures	0	0
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	0	'
Payments for Derivative Instrument, Financing Activities	0	'
Net cash used in investing activities	0	0
Proceeds from Lines of Credit	'	0
Repayments of Lines of Credit	'	0
Repayments of long-term debt	0	0
Proceeds from Issuance of Long-term Debt	0	0
Repayments of Long-term Debt	0	0
Payments of Financing Costs	0	'
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes, employer portion	'	0
Proceeds from Issuance of Common Stock	'	0
Proceeds from stock option exercises	0	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	0	'
Payments of Ordinary Dividends, Common Stock	0	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	'
Advances from (to) affiliates	0	0
Other financing activities	'	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	9.7	13
Cash and cash equivalents - beginning of period	-22.4	-19.9
Cash and cash equivalents - end of period	-12.7	-6.9
Consolidated [Member]	'	'
Supplemental Guarantor Information [Line Items]	'	'
Net cash provided by operating activities	350.5	370.8
Capital expenditures	-34.4	-30.5
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II	-20.9	'
Payments for Derivative Instrument, Financing Activities	-0.7	'
Net cash used in investing activities	-56	-30.5
Proceeds from Lines of Credit	'	63
Repayments of Lines of Credit	'	-63
Repayments of long-term debt	-11.6	-47.2
Proceeds from Issuance of Long-term Debt	600	1,535.20
Repayments of Long-term Debt	-723.9	-1,885.90
Payments of Financing Costs	-14.4	'
Net change in accounts payable-inventory financing	43.1	-24
Payment of incentive compensation plan withholding taxes, employer portion	'	-24.1
Proceeds from Issuance of Common Stock	'	424.7
Proceeds from stock option exercises	1.1	'
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options	3.7	'
Payments of Ordinary Dividends, Common Stock	-21.9	'
Excess Tax Benefit from Share-based Compensation, Financing Activities	0.2	'
Advances from (to) affiliates	0	0
Other financing activities	'	-6.1
Net cash used in financing activities	-123.7	-27.4
Effect of exchange rate changes on cash and cash equivalents	-1.1	-0.6
Net increase (decrease) in cash and cash equivalents	169.7	312.3
Cash and cash equivalents - beginning of period	188.1	37.9
Cash and cash equivalents - end of period	$357.80	$350.20

Supplemental_Guarantor_Informa6

Supplemental Guarantor Information Guarantor (Details) (USD $)

Sep. 30, 2014

9-May-14

Mar. 31, 2014

Feb. 21, 2014

Jan. 22, 2014

Dec. 31, 2013

Oct. 18, 2013

Aug. 01, 2013

Mar. 08, 2013

Mar. 10, 2010

Aug. 05, 2014

Sep. 30, 2014

Aug. 05, 2014

Dec. 31, 2013

Jul. 02, 2013

Sep. 30, 2014

Aug. 05, 2014

Mar. 20, 2014

Dec. 31, 2013

Subordinated Debt [Member]

Senior Notes [Member]

Senior Secured Notes, due 2018 [Member]

Senior notes due 2019 [Member]

Debt Instrument [Line Items]

Debt Instrument, Repurchased Face Amount

$42,500,000

$50,000,000

$20,000,000

$30,000,000

$155,000,000

$324,000,000

$50,000,000

$28,500,000

$325,000,000

$175,000,000

$234,700,000

$25,000,000

Debt, short-term and long-term

92,500,000

600,000,000

325,000,000

1,045,300,000

1,305,000,000

Long-term Debt, stated interest rate

12.54%

8.00%

8.50%

Debt Instrument, Repurchase Amount

$234,700,000

Subsequent_Events_Details

Subsequent Events (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

Share data in Millions, except Per Share data, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Aug. 05, 2014

Sep. 30, 2014

Sep. 30, 2013

Aug. 05, 2014

Dec. 31, 2013

Jul. 02, 2013

9-May-14

Mar. 08, 2013

Feb. 28, 2014

Sep. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

9-May-14

Feb. 21, 2014

Jan. 22, 2014

Oct. 18, 2013

Aug. 01, 2013

Mar. 08, 2013

Mar. 10, 2010

Jul. 31, 2013

Apr. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Apr. 29, 2013

Sep. 30, 2014

Aug. 05, 2014

Mar. 20, 2014

Dec. 31, 2013

Sep. 30, 2014

Nov. 12, 2014

Dec. 31, 2014

Nov. 06, 2014

Dec. 31, 2014

Sep. 30, 2014

Dec. 31, 2014

Senior Notes [Member]

Senior Secured Notes, due 2018 [Member]

Subordinated Debt [Member]

Term Loan [Member]

Senior notes due 2019 [Member]

LIBOR [Member]

Subsequent Event [Member]

Cap agreement effective January 14, 2015-2017 [Member]

Interest rate cap purchased during 2014 [Member]

Minimum [Member]

Maximum [Member]

Subsequent Event [Member]

Term Loan [Member]

Subsequent Event [Line Items]

Derivative, Notional Amount

$300,000,000

$250,000,000

Derivative Asset entered into during fourth quarter 2014, noncurrent

700,000

600,000

Interest Rate Cap, cap rate

2.00%

Cash dividends declared per common share

$0.07

Proceeds from Issuance of Debt

190,000,000

Debt Instrument, Repurchased Face Amount

325,000,000

175,000,000

50,000,000

42,500,000

20,000,000

30,000,000

155,000,000

324,000,000

50,000,000

28,500,000

234,700,000

25,000,000

Redemption Premium, percentage of par value

0.00%

108.00%

104.18%

106.27%

108.80%

109.75%

Extinguishment of Debt, Accrued Interest Paid to Lenders

700,000

400,000

1,900,000

200,000

12,000,000

2,500,000

1,000,000

Proceeds from Issuance of Long-term Debt

600,000,000

1,535,200,000

1,350,000,000

Debt, short-term and long-term

600,000,000

325,000,000

92,500,000

1,517,400,000

1,528,900,000

1,045,300,000

1,305,000,000

Long-term Debt, stated interest rate

8.00%

12.54%

8.50%

Discount, percent of par

99.25%

99.75%

Variable Interest Rate Margin

2.25%

2.50%

Quarterly amortization payment of original principal, Percent

0.25%

Net loss on extinguishments of long-term debt

45,800,000

41,300,000

53,800,000

55,500,000

-23,700,000

16,700,000

3,900,000

-2,200,000

2,700,000

8,500,000

24,600,000

10,300,000

-22,100,000

-2,700,000

Extinguishment of Debt, Fees Paid to Lenders

13,000,000

14,000,000

1,800,000

3,100,000

2,100,000

6,500,000

20,300,000

10,000,000

2,400,000

Write off of Deferred Debt Issuance Cost

4,000,000

2,700,000

800,000

600,000

400,000

2,000,000

4,300,000

2,200,000

300,000

Debt Instrument, Repurchase Amount

234,700,000

Stock Repurchase Program, Number of Shares Authorized to be Repurchased

$500,000,000

Stock Repurchased During Period, Shares

Equity Method Investment, Ownership Percentage

35.00%