CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows from Operating Activities
Net earnings	$ 82,047	$ 157,360	$ 89,600
Adjustments to arrive at net cash provided by operating activities:
Depreciation and amortization	55,015	53,244	48,518
Share-based compensation (income) expense	(739)	503	5,855
Net (gain) loss on assets	(1,122)	63	2,552
Loss on divestitures	44,375	0	33,160
Deferred income taxes	(19,340)	9,844	17,414
Changes in operating assets and liabilities:
Trade accounts receivable	10,930	(96,638)	(130,835)
Inventories	25,238	(34,114)	(47,345)
Prepaid expenses and other assets	3,257	(12,544)	14,072
Accounts payable and other accrued expenses	(18,251)	7,457	4,804
Accrued salaries, wages and withholdings from employees	(3,039)	599	(4,361)
Income taxes	(1,836)	(7,335)	2,846
Other liabilities	647	5,081	27
Net cash provided by operating activities	177,182	83,520	36,307
Cash flows from investing activities:
Acquisition of property, plant, and equipment	(39,100)	(50,740)	(56,344)
Cash receipts on sold receivables	0	91,142	141,465
Proceeds from sale of assets	2,242	2,615	10,485
Proceeds from divesture of business	0	0	12,457
Acquisition of new businesses	0	(31,100)	0
Other investing activities	(553)	2,916	2,319
Net cash (used in) provided by investing activities	(37,411)	14,833	110,382
Cash Flows from Financing Activities
Proceeds from additional borrowings	47,083	322,529	231,174
Debt payments	(134,449)	(284,332)	(239,950)
Purchase of treasury stock	0	(76,734)	(87,217)
Dividends paid	(62,190)	(57,410)	(54,038)
Other financing activities	(1,027)	(2,777)	(3,383)
Net cash used in financing activities	(150,583)	(98,724)	(153,414)
Effect of exchange rate changes on cash and cash equivalents	64	2,928	10,204
Net (decrease) increase in cash and cash equivalents	(10,748)	2,557	3,479
Cash and cash equivalents at beginning of year	31,901	29,344	25,865
Cash and cash equivalents at end of year	21,153	31,901	29,344
Cash paid during the year for:
Interest	20,130	21,567	19,523
Income taxes	40,139	24,089	29,261
Capitalized interest	$ 540	$ 604	$ 486