CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 188,811	$ 154,975	$ 101,157
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	50,374	44,572	36,488
Non-cash lease expense	17,406	13,808	11,699
Share-based compensation	10,973	11,731	10,066
Deferred income taxes	(1,230)	126	(4,268)
(Gain)/Loss on disposals of plant and equipment	1,285	(269)	1,241
Gain from bargain purchase of business	0	(6,482)	0
Foreign exchange (income)/expense	7,236	2,269	1,392
Changes in assets and liabilities, net of acquisitions:
Receivables	(44,800)	(31,925)	22,053
Inventory	(101,080)	(123,076)	13,144
Accounts payable and accrued expenses	(12,283)	89,038	20,519
Operating leases	17,406	13,808	11,698
Income taxes	(679)	(2,241)	2,507
Income taxes-U.S. Tax Cuts and Jobs Act	(355)	0	0
Employee benefit plans	3,488	1,245	604
Other, net	(66)	(10,200)	6,950
Net cash flows from operating activities	101,674	129,763	211,854
Cash flows from investing activities:
Additions to property, plant, and equipment	(41,903)	(30,116)	(22,856)
Proceeds from sale of property, plant, and equipment	6	979	34
Cash paid for acquisitions, net of cash acquired	(1,186)	(235,701)	(55,915)
Other, net	9	33	(74)
Net cash flows from investing activities	(43,074)	(264,805)	(78,811)
Cash flows from financing activities:
Proceeds from issuance of debt	477,558	321,299	117,758
Repayments of debt	(448,622)	(226,583)	(138,831)
Proceeds from issuance of common stock	3,859	15,524	3,721
Purchases of common stock	(40,490)	(25,949)	(19,553)
Dividends paid	(36,991)	(33,398)	(29,675)
Deferred payments for acquisitions	(3,786)	0	0
Net cash flows from financing activities	(48,472)	50,893	(66,580)
Effect of exchange rate changes on cash and cash equivalents	(4,874)	(6,102)	(81)
Net change in cash and cash equivalents	5,254	(90,251)	66,382
Cash paid for income taxes, net of refunds	48,335	37,387	23,869
Cash paid for interest	11,209	5,192	4,695
Cash and cash equivalents at beginning of period	40,536	130,787	64,405
Cash and cash equivalents at end of period	45,790	40,536	130,787
Non-cash items:
Additions to property, plant, and equipment, not yet paid	628	1,454	1,059
Lease right-of-use assets obtained in exchange for new operating lease liabilities	17,599	19,627	15,421
Payable to sellers of acquired entities	354	4,000	0
Payable for share repurchases	$ 1,083	$ 0	$ 0