Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities
Net income available to common stockholders	$ 12,762	$ 12,059
Income from discontinued operations	2,266	2,157
Income from continuing operations	10,496	9,902
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	7,974	4,780
Stock compensation expense	2,368	1,665
Exit activity costs, non-cash	1,193	0
Benefit of deferred income taxes	0	(178)
Other, net	(162)	386
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	(2,522)	(7,180)
Inventories	(15,262)	(7,242)
Other current assets and other assets	(435)	6,218
Accounts payable	1,470	(18,909)
Accrued expenses and other non-current liabilities	(6,334)	(33,268)
Net cash used in operating activities of continuing operations	(1,214)	(43,826)
Net cash (used in) provided by operating activities of discontinued operations	(2,011)	814
Net cash used in operating activities	(3,225)	(43,012)
Cash Flows from Investing Activities
Purchases of property, plant, and equipment	(4,389)	(2,144)
Acquisitions, net of cash acquired	(2)	(54,539)
Net proceeds from sale of business	26,991	0
Net proceeds from sale of property and equipment	0	52
Net cash provided by (used in) investing activities of continuing operations	22,600	(56,631)
Net cash used in investing activities of discontinued operations	(176)	(678)
Net cash provided by (used in) investing activities	22,424	(57,309)
Cash Flows from Financing Activities
Proceeds from long-term debt	20,000	0
Long-term debt payments	(46,636)	0
Purchase of treasury stock at market prices	(4,662)	(4,184)
Net proceeds from issuance of common stock	910	24
Net cash used in financing activities	(30,388)	(4,160)
Effect of exchange rate changes on cash	(134)	(916)
Net decrease in cash and cash equivalents	(11,323)	(105,397)
Cash and cash equivalents at beginning of year	32,054	191,363
Cash and cash equivalents at end of period	$ 20,731	$ 85,966