Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities
Net Income	$ 676,600	$ 543,015
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation	23,172	21,027
Amortization	6,523	1,064
Share-based compensation	11,691	11,755
Equity in earnings of unconsolidated investments, net	(226)	(224)
Other	12,644	5,256
Changes in operating assets and liabilities, net of effects of acquisitions:
Receivables	(181,775)	(186,772)
Product inventories	(223,268)	(267,341)
Prepaid expenses and other assets	(31,171)	(22,674)
Accounts payable	46,564	146,616
Accrued expenses and other current liabilities	(33,284)	107,343
Net Cash Provided by operating activities	307,470	359,065
Investing activities
Acquisition of businesses, net of cash acquired	(8,309)	(17,887)
Purchases of property and equipment, net of sale proceeds	(27,965)	(24,223)
Other Investments	1,760	0
Net cash used in investing activities	(34,514)	(42,110)
Financing activities
Proceeds from revolving line of credit	1,629,740	791,508
Payments on revolving line of credit	(1,629,688)	(730,277)
Proceeds from Long-term Lines of Credit	250,000	0
Proceeds from asset-backed financing	215,000	310,000
Payments on asset-backed financing	(130,000)	(415,000)
Payments on term facility	(6,937)	(6,938)
Proceeds from short-term borrowings and current portion of long-term debt	27,396	7,880
Payments on short-term borrowings and current portion of long-term debt	(26,960)	(9,006)
Payments of Financing Costs	0	(1,610)
Payments of deferred and contingent acquisition consideration	(1,374)	(362)
Proceeds from stock issued under share-based compensation plans	7,201	11,524
Payments of cash dividends	(111,572)	(87,509)
Purchases of treasury stock	(471,210)	(137,975)
Net cash used in financing activities	(248,404)	(267,765)
Effect of exchange rate changes on cash and cash equivalents	206	157
Change in cash and cash equivalents	24,758	49,347
Cash and cash equivalents at beginning of period	24,321	34,128
Cash and cash equivalents at end of period	$ 49,079	$ 83,475