Condensed Consolidating Financial Statements (Statements of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Cash Flow Statements, Captions [Line Items]
Cash flows from operating activities	$ (113.4)	$ (122.2)
Cash flows from investing activities:
Purchases of property, plant and equipment	(23.8)	(18.0)
Net proceeds from sale of business		0.0
Net cash used in discontinued operations		0.0
Net cash used in investing activities	(23.8)	(18.0)
Cash flows from financing activities:
Short-term borrowings, net	(0.4)	(0.2)
Asset securitization borrowings	0.0	0.0
Asset securitization payments	(20.0)	(40.0)
Long-term debt payments	(0.3)	0.0
Borrowings from credit facility	770.5	580.5
Payments on credit facility	(392.0)	(379.0)
Proceeds from employee stock purchases	0.6	0.6
Repurchases of common stock	(200.0)	0.0
Repurchases of common stock to satisfy employee withholding tax obligations	(16.8)	(20.5)
Excess tax benefits related to share-based payments	11.8	16.0
Intercompany debt		0.0
Intercompany financing activity	0.0	0.0
Intercompany investments	0.0	0.0
Cash dividends paid	(16.1)	(13.4)
Net cash provided by financing activities	137.3	144.0
Increase in cash and cash equivalents	0.1	3.8
Effect of exchange rates on cash and cash equivalents	1.6	(4.6)
Cash and cash equivalents, beginning of period	38.9	37.5
Cash and cash equivalents, end of period	40.6	36.7
Parent [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash flows from operating activities	47.2	3.5
Cash flows from investing activities:
Purchases of property, plant and equipment	0.0	0.0
Net proceeds from sale of business		0.0
Net cash used in discontinued operations		0.0
Net cash used in investing activities	0.0	0.0
Cash flows from financing activities:
Short-term borrowings, net	0.0	0.0
Asset securitization borrowings	0.0	0.0
Asset securitization payments	0.0	0.0
Long-term debt payments	0.0	0.0
Borrowings from credit facility	770.5	580.5
Payments on credit facility	(392.0)	(379.0)
Proceeds from employee stock purchases	0.6	0.6
Repurchases of common stock	(200.0)	0.0
Repurchases of common stock to satisfy employee withholding tax obligations	(16.8)	(20.5)
Excess tax benefits related to share-based payments	11.8	16.0
Intercompany debt		(16.2)
Intercompany financing activity	(8.6)	(171.3)
Intercompany investments	(196.1)	0.0
Cash dividends paid	(16.1)	(13.4)
Net cash provided by financing activities	(46.7)	(3.3)
Increase in cash and cash equivalents	0.5	0.2
Effect of exchange rates on cash and cash equivalents	0.0	0.0
Cash and cash equivalents, beginning of period	0.5	1.0
Cash and cash equivalents, end of period	1.0	1.2
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash flows from operating activities	(163.1)	(156.4)
Cash flows from investing activities:
Purchases of property, plant and equipment	(20.9)	(14.9)
Net proceeds from sale of business		0.0
Net cash used in discontinued operations		0.0
Net cash used in investing activities	(20.9)	(14.9)
Cash flows from financing activities:
Short-term borrowings, net	0.0	0.0
Asset securitization borrowings	0.0	0.0
Asset securitization payments	0.0	0.0
Long-term debt payments	(0.2)	0.1
Borrowings from credit facility	0.0	0.0
Payments on credit facility	0.0	0.0
Proceeds from employee stock purchases	0.0	0.0
Repurchases of common stock	0.0	0.0
Repurchases of common stock to satisfy employee withholding tax obligations	0.0	0.0
Excess tax benefits related to share-based payments	0.0	0.0
Intercompany debt		2.9
Intercompany financing activity	(2.9)	168.7
Intercompany investments	194.5	0.0
Cash dividends paid	0.0	0.0
Net cash provided by financing activities	191.4	171.7
Increase in cash and cash equivalents	7.4	0.4
Effect of exchange rates on cash and cash equivalents	0.0	0.0
Cash and cash equivalents, beginning of period	7.8	11.5
Cash and cash equivalents, end of period	15.2	11.9
Non-Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash flows from operating activities	2.5	30.7
Cash flows from investing activities:
Purchases of property, plant and equipment	(2.9)	(3.1)
Net proceeds from sale of business		0.0
Net cash used in discontinued operations		0.0
Net cash used in investing activities	(2.9)	(3.1)
Cash flows from financing activities:
Short-term borrowings, net	(0.4)	(0.2)
Asset securitization borrowings	0.0	0.0
Asset securitization payments	(20.0)	(40.0)
Long-term debt payments	(0.1)	(0.1)
Borrowings from credit facility	0.0	0.0
Payments on credit facility	0.0	0.0
Proceeds from employee stock purchases	0.0	0.0
Repurchases of common stock	0.0	0.0
Repurchases of common stock to satisfy employee withholding tax obligations	0.0	0.0
Excess tax benefits related to share-based payments	0.0	0.0
Intercompany debt		13.3
Intercompany financing activity	11.5	2.6
Intercompany investments	1.6	0.0
Cash dividends paid	0.0	0.0
Net cash provided by financing activities	(7.4)	(24.4)
Increase in cash and cash equivalents	(7.8)	3.2
Effect of exchange rates on cash and cash equivalents	1.6	(4.6)
Cash and cash equivalents, beginning of period	30.6	25.0
Cash and cash equivalents, end of period	24.4	23.6
Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash flows from operating activities	0.0	0.0
Cash flows from investing activities:
Purchases of property, plant and equipment	0.0	0.0
Net proceeds from sale of business		0.0
Net cash used in discontinued operations		0.0
Net cash used in investing activities	0.0	0.0
Cash flows from financing activities:
Short-term borrowings, net	0.0	0.0
Asset securitization borrowings	0.0	0.0
Asset securitization payments	0.0	0.0
Long-term debt payments	0.0	0.0
Borrowings from credit facility	0.0	0.0
Payments on credit facility	0.0	0.0
Proceeds from employee stock purchases	0.0	0.0
Repurchases of common stock	0.0	0.0
Repurchases of common stock to satisfy employee withholding tax obligations	0.0	0.0
Excess tax benefits related to share-based payments	0.0	0.0
Intercompany debt		0.0
Intercompany financing activity	0.0	0.0
Intercompany investments	0.0	0.0
Cash dividends paid	0.0	0.0
Net cash provided by financing activities	0.0	0.0
Increase in cash and cash equivalents	0.0	0.0
Effect of exchange rates on cash and cash equivalents	0.0	0.0
Cash and cash equivalents, beginning of period	0.0	0.0
Cash and cash equivalents, end of period	$ 0.0	$ 0.0