Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating activities
Net Income	$ 397,025	$ 471,792
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation	26,848	23,355
Amortization	6,514	6,425
Share-based compensation	14,391	14,592
Equity in earnings of unconsolidated investments, net	(180)	(235)
Goodwill impairment	0	550
Other	3,123	1,157
Changes in operating assets and liabilities, net of effects of acquisitions:
Receivables	(80,362)	(110,078)
Product inventories	181,326	330,850
Prepaid expenses and other assets	57,151	(23,431)
Accounts payable	(109,021)	20,667
Accrued expenses and other liabilities	(8,196)	14,374
Net Cash Provided by operating activities	488,619	750,018
Investing activities
Acquisition of businesses, net of cash acquired	(4,435)	(11,500)
Purchases of property and equipment, net of sale proceeds	(45,951)	(42,958)
Other Investments	944	(48)
Net cash used in investing activities	(49,442)	(54,506)
Financing activities
Proceeds from revolving line of credit	1,146,900	1,154,601
Payments on revolving line of credit	(1,274,400)	(1,497,501)
Payments on term loan under credit facility	(18,750)	(6,250)
Proceeds from asset-backed financing	623,900	465,500
Payments on asset-backed financing	(606,300)	(422,700)
Payments on term facility	0	(47,313)
Proceeds from short-term borrowings and current portion of long-term debt	8,873	19,428
Payments on short-term borrowings and current portion of long-term debt	(8,643)	(19,182)
Payments of deferred financing costs	1,731	52
Payments of deferred and contingent acquisition consideration	0	(551)
Proceeds from stock issued under share-based compensation plans	11,955	9,278
Payments of cash dividends	(134,181)	(124,983)
Repurchases of common stock	(159,408)	(187,110)
Net cash (used in) provided by financing activities	(411,785)	(656,835)
Effect of exchange rate changes on cash and cash equivalents	(2,585)	952
Change in cash and cash equivalents	24,807	39,629
Cash and cash equivalents at beginning of period	66,540	45,591
Cash and cash equivalents at end of period	$ 91,347	$ 85,220