Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income	$ 106.8	$ 106.7	$ 131.7
Amortization of inventory step-up	0.9	0.1	0.9
Loss (gain) on disposal of assets	0.7	0.2	(1.3)
Deferred income tax expense (benefit)	8.7	22.7	(45.2)
Depreciation	34.9	34.0	35.6
Amortization of debt issuance costs	2.3	2.1	2.9
Amortization of intangibles	35.4	36.7	35.6
Stock-based compensation	10.1	8.8	17.0
Loss on debt extinguishment	0.2	0.3	0.0
Changes in balance sheet items:
Accounts receivable	(14.8)	46.0	10.2
Inventories	71.4	(92.9)	2.5
Other assets	(0.4)	5.5	4.2
Accounts payable	(32.8)	101.0	(18.7)
Accrued expenses and other liabilities	(26.7)	(72.5)	(8.3)
Accrued income taxes	7.2	(3.9)	37.8
Net cash provided by operating activities	203.9	194.8	204.9
Investing activities
Additions to property, plant and equipment	(32.8)	(34.1)	(31.0)
Proceeds from the disposition of assets	0.5	0.2	4.2
Cost of acquisitions, net of cash acquired	(41.3)	(38.0)	(292.3)
Other assets acquired	(6.0)	0.0	0.0
Net cash used by investing activities	(79.6)	(71.9)	(319.1)
Financing activities
Proceeds from long-term borrowings	325.8	225.3	484.1
Repayments of long-term debt	(387.9)	(249.5)	(296.5)
Repayments of notes payable, net	(8.5)	0.0	0.0
Payments for debt issuance costs	(3.4)	(0.6)	(3.6)
Repurchases of common stock	(65.0)	(75.0)	(36.6)
Dividends paid	(24.4)	(25.1)	0.0
Payments related to tax withholding for stock-based compensation	(4.2)	(7.5)	(9.4)
Proceeds from the exercise of stock options	4.2	6.8	4.2
Net cash (used) provided by financing activities	(163.4)	(125.6)	142.2
Effect of foreign exchange rate changes on cash and cash equivalents	(0.1)	(7.2)	6.0
Net (decrease) increase in cash and cash equivalents	(39.2)	(9.9)	34.0
Cash and cash equivalents
Beginning of the period	67.0	76.9	42.9
End of the period	27.8	67.0	76.9
Supplemental Cash Flow Information [Abstract]
Interest	42.1	37.9	38.0
Income taxes	$ 41.9	$ 33.7	$ 34.8