Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net income	$ 195,164	$ 188,145
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of assets and other	(489)	(1,126)
Depreciation and amortization	36,045	28,324
Noncash lease expense	6,595	5,430
(Gain) loss in equity method investment, before tax	102	(229)
Deferred income taxes	(6,517)	(4,557)
Noncash compensation related to stock plans	11,164	9,528
Provision for doubtful accounts	459	223
Deferred hedge gain	(2,148)	(693)
Changes in operating assets and liabilities
Trade accounts receivable	(118,922)	(88,635)
Inventories	34,884	(15,203)
Trade accounts payable	672	15,668
Other current assets	(1,416)	(5,834)
Accrued liabilities and other current liabilities	48,971	21,904
Other noncurrent assets and liabilities	(7,324)	(23,730)
Net cash provided by operating activities	197,240	138,451
Cash flows from investing activities
Capital expenditures	(37,918)	(31,829)
Acquisitions, net of cash (see Note 3)	(18,195)	(805,904)
Equity method investments	(663)	(1,170)
Proceeds from sale of property and equipment	183	1,816
Proceeds from Divestiture of Businesses	8,544	0
Terminated forward contract	0	3,535
Net cash used in investing activities	(48,049)	(833,552)
Cash flows from financing activities
Termination of cash flow hedge	0	21,252
Repurchase of common stock	0	(46,281)
Proceeds from borrowing under lines of credit and term loan	265	701,083
Repayments of lines of credit and term loan	(11,705)	(6,600)
Debt issuance costs	0	(6,804)
Dividends paid	(22,158)	(21,596)
Cash paid on behalf of employees for shares withheld	(7,398)	(9,523)
Net cash provided by (used in) financing activities	(40,996)	631,531
Effect of exchange rate changes on cash and cash equivalents	(955)	8,549
Net increase (decrease) in cash and cash equivalents	107,240	(55,021)
Cash and cash equivalents at beginning of period	300,742	301,155
Cash and cash equivalents at end of period	407,982	246,134
Noncash activity during the period
Noncash capital expenditures	1,059	1,082
Dividends declared but not paid	11,518	11,222
Issuance of Company’s common stock for compensation	$ 0	$ 960