Consolidated Cash Flow Statements - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ (55,058)	$ (376,776)	$ 160,711
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Asset impairment of discontinued operations	113,007	521,441	0
Depreciation and amortization	108,687	139,259	148,632
Share-based compensation	20,030	17,751	18,497
Loss on disposal of business	946	0	0
Loss on debt extinguishment	0	0	22,990
Deferred income tax expense (benefit)	(19,410)	(23,540)	11,300
Changes in operating assets and liabilities, net of the effects of exchange rate changes, acquired businesses, and disposals:
Receivables	70,707	22,926	(21,748)
Inventories	(8,507)	44,477	(14,779)
Accounts payable	(43,567)	(41,527)	(29,401)
Accrued liabilities	7,374	(17,654)	17,238
Income taxes	(22,823)	5,497	(4,390)
Other assets	2,018	(16,118)	(18,748)
Other liabilities	(40)	1,157	(1,082)
Net cash provided by operating activities	173,364	276,893	289,220
Cash flows from investing activities:
Capital expenditures	(90,215)	(110,002)	(97,847)
Cash from (used for) business acquisitions, net of cash acquired	590	(74,392)	(84,580)
Proceeds from disposal of tangible assets	3,161	25	1,580
Proceeds from disposal of business, net of cash sold	54,821	0	40,171
Net cash used for investing activities	(31,643)	(184,369)	(140,676)
Cash flows from financing activities:
Payments under borrowing arrangements	(190,000)	0	(484,757)
Payments under share repurchase program	(35,000)	(50,000)	(175,000)
Payment of earnout consideration	(29,300)	0	0
Cash dividends paid	(9,029)	(34,439)	(43,169)
Withholding tax payments for share based-payment awards	(1,388)	(2,149)	(2,094)
Other	(194)	(360)	0
Debt issuance costs paid	0	0	(7,609)
Redemption of stockholders' rights agreement	0	0	(411)
Borrowings under credit arrangements	190,000	0	431,270
Net cash used for financing activities	(74,911)	(86,948)	(281,770)
Effect of foreign currency exchange rate changes on cash and cash equivalents	9,299	(301)	(7,272)
Increase (decrease) in cash and cash equivalents	76,109	5,275	(140,498)
Cash and cash equivalents, beginning of year	425,885	420,610	561,108
Cash and cash equivalents, end of year	$ 501,994	$ 425,885	$ 420,610