Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net income	$ 406,404	$ 434,325	$ 523,229
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	42,678	36,784	31,585
Amortization	8,927	8,697	8,555
Share-based compensation	22,733	19,248	19,582
(Benefit) provision for doubtful accounts receivable, net of write-offs	(589)	(3,122)	2,197
(Benefit) provision for inventory obsolescence, net of write-offs	(2,756)	3,048	1,930
Provision for deferred income taxes	17,030	15,739	10,359
Gains on sales of property and equipment	(611)	(1,645)	(317)
Equity in earnings of unconsolidated investments, net	(102)	(207)	(177)
Net (gains) losses on foreign currency transactions	(492)	218	(813)
Goodwill impairment	285	0	550
Other	(271)	(245)	200
Changes in operating assets and liabilities, net of effects of acquisitions:
Receivables	(27,324)	29,146	10,108
Product inventories	(147,405)	66,201	231,240
Prepaid expenses and other assets	91,799	75,122	57,840
Accounts payable	119,358	14,429	96,128
Accrued expenses and other liabilities	(163,814)	(38,552)	(103,967)
Net cash provided by operating activities	365,850	659,186	888,229
Investing activities
Acquisition of businesses, net of cash acquired	(10,831)	(4,692)	(11,533)
Purchases of property and equipment, net of sale proceeds	(56,334)	(59,476)	(60,096)
Other investments, net	(627)	(2,001)	32
Net cash used in investing activities	(67,792)	(66,169)	(71,597)
Financing activities
Proceeds from revolving line of credit	1,929,200	1,517,800	1,548,618
Payments on revolving line of credit	(1,698,700)	(1,575,700)	(1,815,829)
Proceeds from term loan under credit facility	50,000	0	0
Payments on term loan under credit facility	(12,500)	(25,000)	(12,500)
Proceeds from asset-backed financing	473,500	727,000	552,500
Payments on asset-backed financing	(473,100)	(744,600)	(560,300)
Payments on Term Facility	(19,938)	0	(47,313)
Proceeds from short-term borrowings and current portion of long-term debt	17,700	8,873	19,998
Payments on short-term borrowings and current portion of long-term debt	(16,644)	(10,103)	(19,338)
Payments of deferred financing costs	(1,397)	(2,077)	(52)
Payments of deferred and contingent acquisition consideration	0	0	(551)
Proceeds from stock issued under share-based compensation plans	9,702	13,190	10,455
Payments of cash dividends	(184,916)	(179,633)	(167,461)
Repurchases of common stock and payments of excise tax	(346,286)	(306,300)	(306,359)
Net cash used in financing activities	(273,379)	(576,550)	(798,132)
Effect of exchange rate changes on cash and cash equivalents	2,422	(5,145)	2,449
Change in cash and cash equivalents	27,101	11,322	20,949
Cash and cash equivalents at beginning of year	77,862	66,540	45,591
Cash and cash equivalents at end of year	$ 104,963	$ 77,862	$ 66,540