Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities
Net income	$ 75,629	$ 64,566	$ 65,091
Income (loss) from discontinued operations	1,113	(18,725)	5,163
Income from continuing operations	74,516	83,291	59,928
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	31,966	20,915	17,557
Intangible asset impairment	8,300	0	0
Gain on sale of business	0	(1,881)	0
Stock compensation expense	8,652	8,173	12,570
Exit activity costs, non-cash	1,193	493	408
Provision for deferred income taxes	2,968	3,786	4,120
Other, net	1,570	1,944	5,399
Changes in operating assets and liabilities (excluding the effects of acquisitions):
Accounts receivable	(41,887)	2,277	(11,256)
Inventories	(85,763)	(5,719)	14,272
Other current assets and other assets	(426)	5,467	(9,306)
Accounts payable	38,367	(1,160)	4,804
Accrued expenses and other non-current liabilities	(14,384)	(44,570)	14,040
Net cash provided by operating activities of continuing operations	25,072	73,016	112,536
Net cash (used in) provided by operating activities of discontinued operations	(2,002)	16,088	17,399
Net cash provided by operating activities	23,070	89,104	129,935
Cash Flows from Investing Activities
Purchases of property, plant, and equipment	(17,705)	(13,068)	(8,776)
Acquisitions, net of cash acquired	4,143	(313,686)	(8,595)
Net proceeds from sale of property and equipment	214	77	92
Net proceeds from sale of business	38,062	2,000	0
Net cash provided by (used in) investing activities of continuing operations	24,714	(324,677)	(17,279)
Net cash used in investing activities of discontinued operations	(176)	(2,033)	(2,394)
Net cash provided by (used in) investing activities	24,538	(326,710)	(19,673)
Cash Flows from Financing Activities
Long-term debt payments	(120,636)	0	(212,000)
Proceeds from long-term debt	59,500	85,000	0
Payment of debt issuance costs	0	0	(1,235)
Purchase of common stock at market prices	(6,497)	(6,656)	(4,305)
Net proceeds from issuance of common stock	1,021	1,119	490
Net cash (used in) provided by financing activities	(66,612)	79,463	(217,050)
Effect of exchange rate changes on cash	(201)	(1,166)	1,145
Net decrease in cash and cash equivalents	(19,205)	(159,309)	(105,643)
Cash and cash equivalents at beginning of year	32,054	191,363	297,006
Cash and cash equivalents at end of year	$ 12,849	$ 32,054	$ 191,363