Supplemental Guarantor Information -Condensed Consolidating Balance Sheets (Details) (USD $) 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	$ 357.8	$ 188.1	$ 350.2	$ 37.9
Accounts receivable, net of allowance for doubtful accounts	1,473.2	1,451.0
Merchandise inventory	423.5	382.0
Miscellaneous receivables	175.4	146.3
Prepaid expenses and other	86.3	46.1
Total current assets	2,516.2	2,213.5
Property and equipment, net	131.7	131.1
Goodwill	2,218.6	2,220.3
Other intangible assets, net	1,207.0	1,328.0
Deferred financing costs, net	31.8	30.1
Other assets	2.1	1.6
Total assets	6,107.4	5,924.6
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	1,527.6	1,402.6
Debt	3,146.3	3,205.8
Deferred income taxes	495.4	563.5
Other liabilities	44.1	41.0
Total long-term liabilities	3,685.8	3,810.3
Total shareholders' equity (deficit)	894.0	711.7
Total liabilities and shareholders' equity (deficit)	6,107.4	5,924.6
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	894.0	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)	894.0	711.7
Total liabilities and shareholders' equity (deficit)	894.0	711.7
Subsidiary Issuer [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	340.0	196.5	329.4	48.0
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	2,826.3	2,909.4
Total assets	4,424.5	4,358.1
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	160.0	163.5
Total current liabilities	194.0	230.3
Debt	3,146.3	3,205.8
Deferred income taxes	153.9	178.3
Other liabilities	40.7	36.9
Total long-term liabilities	3,340.9	3,421.0
Total shareholders' equity (deficit)	889.6	706.8
Total liabilities and shareholders' equity (deficit)	4,424.5	4,358.1
Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	0	0	0	0
Accounts receivable, net of allowance for doubtful accounts	1,410.1	1,375.9
Merchandise inventory	419.7	378.9
Miscellaneous receivables	110.8	91.0
Prepaid expenses and other	67.5	33.4
Total current assets	2,008.1	1,879.2
Property and equipment, net	56.1	59.6
Goodwill	1,439.0	1,439.0
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	4,381.7	4,360.7
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	1,313.0	1,158.9
Debt	0	0
Deferred income taxes	344.4	388.4
Other liabilities	3.6	3.6
Total long-term liabilities	348.0	392.0
Total shareholders' equity (deficit)	2,720.7	2,809.8
Total liabilities and shareholders' equity (deficit)	4,381.7	4,360.7
Non-Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	30.5	14.0	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	3.0
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	(1.0)	(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	(3,715.9)	(3,616.2)
Total assets	(3,735.4)	(3,647.4)
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	(1.0)	(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)	(3,715.9)	(3,616.2)
Total liabilities and shareholders' equity (deficit)	(3,735.4)	(3,647.4)
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	1,473.2	1,451.0
Merchandise inventory	423.5	382.0
Miscellaneous receivables	175.4	146.3
Prepaid expenses and other	86.3	46.1
Total current assets	2,516.2	2,213.5
Property and equipment, net	131.7	131.1
Goodwill	2,218.6	2,220.3
Other intangible assets, net	1,207.0	1,328.0
Deferred financing costs, net	31.8	30.1
Other assets	2.1	1.6
Investment from and advances to subsidiaries	0	0
Total assets	6,107.4	5,924.6
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	343.0
Total current liabilities	1,527.6	1,402.6
Debt	3,146.3	3,205.8
Deferred income taxes	495.4	563.5
Other liabilities	44.1	41.0
Total long-term liabilities	3,685.8	3,810.3
Total shareholders' equity (deficit)	894.0	711.7
Total liabilities and shareholders' equity (deficit)	$ 6,107.4	$ 5,924.6