Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 13,479	$ 99,873	$ 63,375
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	92,150	91,085	87,656
Gain on disposition of property, plant and equipment	(821)	(1,027)	(94)
Stock compensation expense	12,804	11,470	10,300
Seeger divestiture charges	0	0	6,677
Non-cash goodwill impairment charge	68,194	0	0
Changes in assets and liabilities, net of the effects of divestitures:
Accounts receivable	(39,484)	(18,793)	107,381
Inventories	(48,591)	(7,350)	2,147
Prepaid expenses and other current assets	(9,257)	(5,208)	(5,721)
Accounts payable	15,998	22,909	(9,968)
Accrued liabilities	(25,659)	(1,630)	(37,430)
Deferred income taxes	2,645	(19,354)	(5,867)
Long-term retirement benefits	(1,474)	3,423	(1,418)
Long-term tax liability	(6,948)	(6,949)	(6,949)
Other	2,523	(643)	5,373
Net cash provided by operating activities	75,559	167,806	215,462
Investing activities:
Proceeds from disposition of property, plant and equipment	1,825	3,007	449
Proceeds from the sale of businesses, net of cash sold	0	0	36,062
Capital expenditures	(35,082)	(34,117)	(40,698)
Other	(2,729)	1,304	0
Net cash used in investing activities	(35,986)	(29,806)	(4,187)
Financing activities:
Net change in other borrowings	(1,333)	(173)	(5,855)
Payments on long-term debt	(108,415)	(115,507)	(266,424)
Proceeds from the issuance of long-term debt	98,285	48,300	98,107
Proceeds from the issuance of common stock	513	1,427	1,989
Common stock repurchases	(6,721)	(5,229)	(15,550)
Dividends paid	(32,376)	(32,402)	(32,402)
Withholding taxes paid on stock issuances	(1,144)	(1,421)	(3,368)
Other	(13,638)	(9,661)	3,837
Net cash used provided by financing activities	(64,829)	(114,666)	(219,666)
Effect of exchange rate changes on cash flows	(5,525)	(2,893)	6,054
(Decrease) increase in cash, cash equivalents and restricted cash	(30,781)	20,441	(2,337)
Cash, cash equivalents and restricted cash at beginning of year	111,909	91,468	93,805
Cash, cash equivalents and restricted cash at end of year	81,128	111,909	91,468
Cash and cash equivalents	76,858	102,860	79,145
Prepaid expenses and other current assets
Financing activities:
Restricted cash	(2,135)	(4,524)	(4,944)
Other assets
Financing activities:
Restricted cash	$ (2,135)	$ (4,525)	$ (7,379)