CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Cash Flows [Abstract]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	$ 64.9	$ 45.8	$ 41.9
CASH FLOWS FROM OPERATING ACTIVITIES FROM CONTINUING OPERATIONS:
Net income before non-controlling interests	189.4	97.6	140.7
Loss from discontinued operations, net of tax	1.4	17.8	30.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	89.7	87.1	80.7
Amortization of stock-based compensation	26.8	24.8	13.3
Amortization of deferred financing costs	2.4	2.3	2.2
Bad debt expense	29.3	31.3	9.8
Charitable stock donation	8.9	0.0	0.0
Deferred income taxes	(7.1)	6.0	(61.1)
Dividends received from unconsolidated affiliates	13.4	14.8	11.3
Equity income in earnings of unconsolidated affiliates	(15.9)	(17.6)	(15.6)
Loss on sale of assets	1.0	3.3	2.2
Foreign currency adjustments and other	(5.2)	(2.1)	(2.9)
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable	(76.0)	(46.3)	21.0
Inventories	(28.2)	(44.6)	16.3
Prepaid expenses and other assets	11.3	(14.4)	(15.2)
Operating leases, net	8.6	0.0	0.0
Accounts payable	(4.8)	28.7	3.8
Accrued expenses and other liabilities	67.3	43.2	(4.9)
Income taxes, net	2.5	(24.4)	24.0
Net cash provided by operating activities from continuing operations	314.8	207.5	256.5
CASH FLOWS FROM INVESTING ACTIVITIES FROM CONTINUING OPERATIONS:
Purchases of property, plant and equipment	(88.2)	(73.6)	(66.6)
Acquisitions, net of cash acquired	(17.1)	0.0	0.0
Other	15.1	2.4	0.9
Net cash used in investing activities from continuing operations	(90.2)	(71.2)	(65.7)
CASH FLOWS FROM FINANCING ACTIVITIES FROM CONTINUING OPERATIONS:
Proceeds from borrowings under long-term debt obligations	1,242.8	1,094.9	1,332.9
Repayments of borrowings under long-term debt obligations	(1,347.1)	(1,195.8)	(1,471.5)
Proceeds from exercise of stock options	17.8	4.6	12.8
Treasury stock repurchased	(105.7)	(4.6)	(44.9)
Payment of deferred financing costs	(3.2)	0.0	(0.5)
Repayments of finance lease obligations and other	(7.8)	(6.1)	(4.0)
Net cash used in financing activities from continuing operations	(203.2)	(107.0)	(175.2)
Net cash provided by continuing operations	21.4	29.3	15.6
CASH USED IN DISCONTINUED OPERATIONS
Operating cash flows	(2.0)	(24.4)	(33.6)
Investing cash flows	0.0	2.1	3.6
Financing cash flows	0.0	0.0	0.0
Net cash used in discontinued operations	(2.0)	(22.3)	(30.0)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(0.3)	(3.1)	(9.4)
Increase (decrease) in cash and cash equivalents	19.1	3.9	(23.8)
CASH AND CASH EQUIVALENTS, beginning of period	45.8	41.1
CASH AND CASH EQUIVALENTS, end of period	64.9	45.8	41.1
LESS: CASH AND CASH EQUIVALENTS OF DISCONTINUED OPERATIONS	0.0	0.0	0.8
Cash paid during the period for:
Interest	89.0	91.8	86.6
Income taxes, net of refunds	$ 73.8	$ 32.5	$ 79.8