Supplemental Guarantor Information -Condensed Consolidating Balance Sheets (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	$ 179.3	$ 37.9	$ 158.7	$ 99.9
Accounts receivable, net of allowance for doubtful accounts	1,390.5	1,285.0
Merchandise inventory	378.5	314.6
Miscellaneous receivables	165.1	148.5
Deferred income taxes	12.1	14.1
Prepaid expenses and other	108.2	34.6
Total current assets	2,233.7	1,834.7
Property and equipment, net	132.7	142.7
Goodwill	2,207.4	2,209.3
Other intangible assets, net	1,403.7	1,478.5
Deferred financing costs, net	41.4	53.2
Other assets	1.6	1.6
Total assets	6,020.5	5,720.0
Accounts payable-trade	771.0	518.6
Accounts payable-inventory financing	282.5	249.2
Current maturities of long-term debt	13.5	40.0
Deferred revenue	96.9	57.8
Total current liabilities	1,445.2	1,168.2
Debt	3,710.9	3,731.0
Deferred income taxes	598.3	624.3
Other Accrued Interest	6.4	8.0
Other liabilities	50.7	52.0
Total long-term liabilities	4,366.3	4,415.3
Total shareholders' equity (deficit)	209.0	136.5
Total liabilities and shareholders' equity (deficit)	6,020.5	5,720.0
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
Deferred income taxes	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	5.2	5.4
Investment from and advances to subsidiaries	203.8	131.1
Total assets	209.0	136.5
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 Accrued Interest	0	0
Other liabilities	0	0
Total long-term liabilities	0	0
Total shareholders' equity (deficit)	209.0	136.5
Total liabilities and shareholders' equity (deficit)	209.0	136.5
Subsidiary Issuer [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	142.0	48.0	142.2	102.1
Accounts receivable, net of allowance for doubtful accounts	0	0
Merchandise inventory	0	0
Miscellaneous receivables	55.4	61.7
Deferred income taxes	8.5	8.7
Prepaid expenses and other	24.0	10.1
Total current assets	229.9	128.5
Property and equipment, net	69.4	73.9
Goodwill	749.4	749.4
Other intangible assets, net	343.9	348.6
Deferred financing costs, net	41.4	53.2
Other assets	1.5	1.1
Investment from and advances to subsidiaries	2,892.0	2,946.0
Total assets	4,327.5	4,300.7
Accounts payable-trade	20.6	16.5
Accounts payable-inventory financing	0	0
Current maturities of long-term debt	13.5	40.0
Deferred revenue	0	0
Accrued Expenses	136.4	139.3
Total current liabilities	170.5	195.8
Debt	3,710.9	3,731.0
Deferred income taxes	189.8	188.1
Other Accrued Interest	6.4	8.0
Other liabilities	46.1	46.7
Total long-term liabilities	3,953.2	3,973.8
Total shareholders' equity (deficit)	203.8	131.1
Total liabilities and shareholders' equity (deficit)	4,327.5	4,300.7
Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	11.2	0	22.1	15.8
Accounts receivable, net of allowance for doubtful accounts	1,335.2	1,217.7
Merchandise inventory	376.2	313.2
Miscellaneous receivables	103.3	82.0
Deferred income taxes	3.7	5.5
Prepaid expenses and other	83.6	24.4
Total current assets	1,913.2	1,642.8
Property and equipment, net	61.1	66.2
Goodwill	1,428.5	1,428.5
Other intangible assets, net	1,052.5	1,121.7
Deferred financing costs, net	0	0
Other assets	0.1	0.4
Investment from and advances to subsidiaries	0	0
Total assets	4,455.4	4,259.6
Accounts payable-trade	725.2	500.3
Accounts payable-inventory financing	282.5	249.2
Current maturities of long-term debt	0	0
Deferred revenue	96.5	57.8
Accrued Expenses	138.9	157.4
Total current liabilities	1,243.1	964.7
Debt	0	0
Deferred income taxes	412.1	440.0
Other Accrued Interest	0	0
Other liabilities	3.6	4.0
Total long-term liabilities	415.7	444.0
Total shareholders' equity (deficit)	2,796.6	2,850.9
Total liabilities and shareholders' equity (deficit)	4,455.4	4,259.6
Non-Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	26.2	9.8	21.2	8.1
Accounts receivable, net of allowance for doubtful accounts	55.3	67.3
Merchandise inventory	2.3	1.4
Miscellaneous receivables	6.4	4.8
Deferred income taxes	(0.1)	(0.1)
Prepaid expenses and other	0.6	0.1
Total current assets	90.7	83.3
Property and equipment, net	2.2	2.6
Goodwill	29.5	31.4
Other intangible assets, net	7.3	8.2
Deferred financing costs, net	0	0
Other assets	0.6	0.6
Investment from and advances to subsidiaries	0	0
Total assets	130.3	126.1
Accounts payable-trade	25.3	21.7
Accounts payable-inventory financing	0	0
Current maturities of long-term debt	0	0
Deferred revenue	0.4	0
Accrued Expenses	6.0	5.9
Total current liabilities	31.7	27.6
Debt	0	0
Deferred income taxes	1.6	1.7
Other Accrued Interest	0	0
Other liabilities	1.6	1.7
Total long-term liabilities	3.2	3.4
Total shareholders' equity (deficit)	95.4	95.1
Total liabilities and shareholders' equity (deficit)	130.3	126.1
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
Deferred income taxes	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 Accrued Interest	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	(0.1)	(19.9)	(26.8)	(26.1)
Accounts receivable, net of allowance for doubtful accounts	0	0
Merchandise inventory	0	0
Miscellaneous receivables	0	0
Deferred income taxes	0	0
Prepaid expenses and other	0	0
Total current assets	(0.1)	(19.9)
Property and equipment, net	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Deferred financing costs, net	0	0
Other assets	(5.8)	(5.9)
Investment from and advances to subsidiaries	(3,095.8)	(3,077.1)
Total assets	(3,101.7)	(3,102.9)
Accounts payable-trade	(0.1)	(19.9)
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	(0.1)	(19.9)
Debt	0	0
Deferred income taxes	(5.2)	(5.5)
Other Accrued Interest	0	0
Other liabilities	(0.6)	(0.4)
Total long-term liabilities	(5.8)	(5.9)
Total shareholders' equity (deficit)	(3,095.8)	(3,077.1)
Total liabilities and shareholders' equity (deficit)	(3,101.7)	(3,102.9)
Consolidated [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	179.3	37.9	158.7	99.9
Accounts receivable, net of allowance for doubtful accounts	1,390.5	1,285.0
Merchandise inventory	378.5	314.6
Miscellaneous receivables	165.1	148.5
Deferred income taxes	12.1	14.1
Prepaid expenses and other	108.2	34.6
Total current assets	2,233.7	1,834.7
Property and equipment, net	132.7	142.7
Goodwill	2,207.4	2,209.3
Other intangible assets, net	1,403.7	1,478.5
Deferred financing costs, net	41.4	53.2
Other assets	1.6	1.6
Investment from and advances to subsidiaries	0	0
Total assets	6,020.5	5,720.0
Accounts payable-trade	771.0	518.6
Accounts payable-inventory financing	282.5	249.2
Current maturities of long-term debt	13.5	40.0
Deferred revenue	96.9	57.8
Accrued Expenses	281.3	302.6
Total current liabilities	1,445.2	1,168.2
Debt	3,710.9	3,731.0
Deferred income taxes	598.3	624.3
Other Accrued Interest	6.4	8.0
Other liabilities	50.7	52.0
Total long-term liabilities	4,366.3	4,415.3
Total shareholders' equity (deficit)	209.0	136.5
Total liabilities and shareholders' equity (deficit)	$ 6,020.5	$ 5,720.0