Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 9,860	$ 5,927
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,757	4,646
Amortization of debt discount	2,503	2,264
Amortization of deferred debt issuance costs	1,058	819
Amortization	13,519	13,776
Stock-based compensation	3,387	3,032
Deferred income taxes	(2,688)	(2,742)
Increase (decrease) in cash flows from changes in assets and liabilities:
Accounts receivable	11,957	19,057
Inventories	(11,638)	(12,313)
Accounts payable	2,804	1,705
Accrued compensation and benefits	(8,955)	(18,397)
Other assets	(6,002)	(7,260)
Other liabilities	1,782	(6,793)
Net cash provided by operating activities	22,344	3,721
Cash flows from investing activities:
Purchases of property, plant and equipment	(3,109)	(2,825)
Payments related to business and asset acquisitions, net of cash acquired	0	(3,852)
Net cash used in investing activities	(3,109)	(6,677)
Cash flows from financing activities:
Payments on term loan	(3,313)	(3,313)
Payments on revolving line of credit	(72,000)	(41,000)
Proceeds from revolving line of credit	64,000	59,000
Payments related to contingent consideration	0	(1,133)
Dividends paid on common stock	(5,775)	(5,683)
Other, net	8,216	(5,132)
Net cash provided by (used in) financing activities	(8,872)	2,739
Effect of exchange rate changes on cash and cash equivalents	(950)	(1,330)
Net increase (decrease) in cash and cash equivalents	9,413	(1,547)
Cash and cash equivalents at beginning of period	27,356	25,856
Cash and cash equivalents at end of period	36,769	24,309
Non-cash investing and financing activities:
Dividends payable	$ 5,813	$ 5,703