Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income (Loss)	$ 44.5	$ 39.4
Income (loss) from discontinued operations	0.0	0.1
Income (loss) from continuing operations	44.5	39.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	38.7	43.6
Deferred income tax expense (benefit)	(0.9)	5.3
Stock compensation expense	3.8	3.6
Changes in assets and liabilities:
Change in receivables	(15.5)	(24.7)
Change in other current assets	7.8	(4.7)
Change in deferred charges, net	0.3	0.6
Change in other assets and liabilities	(6.2)	(14.7)
Change in payables and other current liabilities	4.1	16.8
Net cash provided by operating activities	76.6	65.1
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(11.0)	(28.6)
Payments for (Proceeds from) Short-term Investments	(0.8)	0.0
Net cash provided by (used in) investing activities	(11.8)	(28.6)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of Long-term Debt	(1.0)	(2.3)
Proceeds from Accounts Receivable Securitization	288.0	178.0
Repayments of Accounts Receivable Securitization	(308.0)	(155.0)
Repurchase of common shares	(20.3)	(18.1)
Proceeds from exercise of stock options	0.3	0.8
Payments of Dividends	(7.8)	(7.0)
Excess tax benefit from share-based compensation	0.8	0.4
Net cash used in financing activities of continuing operations	(48.0)	(3.2)
Net increase (decrease) in cash and cash equivalents	16.8	33.3
Cash and cash equivalents at beginning of period	204.7	198.9
Cash and cash equivalents at end of period	$ 221.5	$ 232.2