CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows From Operating Activities:
Net income	$ 11,927	$ 4,035
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation and amortization	4,431	3,750
Deferred income taxes	(7,029)	(488)
Stock-based compensation expense	797	789
Debt issue cost amortization recorded in interest expense	35	38
Other	890	72
Changes in operating assets and liabilities, net of acquisition:
Trade receivables	(9,912)	(7,463)
Inventories	56	(3,978)
Prepaid expenses and other assets	1,862	275
Accounts payable	4,994	3,043
Accrued liabilities	(2,484)	(3,039)
Net cash provided by (used in) operating activities	5,567	(2,966)
Cash Flows From Investing Activities:
Purchase of property and equipment	(3,076)	(1,696)
Consideration paid for acquisitions, net of cash acquired		(14,541)
Net cash used in investing activities	(3,076)	(16,237)
Cash Flows From Financing Activities:
Proceeds from issuance of long-term debt		26,979
Payment of debt issuance costs		(401)
Tax withholdings related to net share settlements of restricted stock	(256)	(256)
Net cash (used in) provided by financing activities	(256)	26,322
Effect of foreign exchange rate changes on cash	(641)	(152)
Net increase in cash and cash equivalents	1,594	6,967
Cash and cash equivalents at beginning of period	23,131	13,416
Cash and cash equivalents at end of period	24,725	20,383
Supplemental disclosure of cash flow information:
Property, plant and equipment purchases in accounts payable or accrued expenses	$ 793	$ 540