Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities
Net income	$ 57.7	$ 89.4
Gain on revaluation of previously held joint-venture equity interest	0.0	(28.9)
Amortization of inventory step-up	0.9	0.4
Loss (gain) on disposal of assets	0.2	(0.5)
Depreciation	26.3	23.0
Amortization of debt issuance costs	2.4	3.2
Amortization of intangibles	26.4	15.9
Stock-based compensation	11.9	12.1
Equity in earnings of joint-venture, net of dividends received	0.0	(1.6)
Changes in balance sheet items:
Accounts receivable	64.6	67.7
Inventories	(48.4)	(31.3)
Other assets	(5.0)	0.0
Accounts payable	(3.5)	(7.3)
Accrued expenses and other liabilities	(20.0)	(37.7)
Accrued income taxes	2.2	6.5
Net cash provided by operating activities	115.7	110.9
Investing activities
Additions to property, plant and equipment	(18.8)	(11.1)
Proceeds from the disposition of assets	0.1	0.8
Cost of acquisitions, net of cash acquired	(292.3)	(88.8)
Net cash used by investing activities	(311.0)	(99.1)
Financing activities
Proceeds from long-term borrowings	474.1	187.4
Repayments of long-term debt	(180.5)	(163.5)
Borrowings of notes payable, net	0.0	7.8
Payments for debt issuance costs	(3.5)	(0.8)
Repurchases of common stock	(36.3)	0.0
Payments related to tax withholding for stock-based compensation	(9.3)	(5.0)
Proceeds from the exercise of stock options	3.2	1.9
Net cash provided by financing activities	247.7	27.8
Effect of foreign exchange rate changes on cash and cash equivalents	6.0	6.0
Net increase in cash and cash equivalents	58.4	45.6
Cash and cash equivalents
Beginning of the period	42.9	55.4
End of the period	$ 101.3	$ 101.0