Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ 72,953	$ 106,768
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	35,764	37,925
Non-cash lease expense	21,978	26,879
Stock-based compensation	6,149	13,383
Foreign currency losses	4,769	2,415
Loss on disposal of assets	212	2,189
Deferred taxes	4,369	3,007
Changes in operating assets and liabilities:
Accounts receivable, net	(6,926)	(2,789)
Inventories, net	32,213	(80,224)
Prepaid expenses and other	(17,527)	(33,061)
Other assets	4,461	(19,897)
Accounts payable	10,246	(4,930)
Accrued expenses	(97,413)	(55,429)
Other liabilities	(17,152)	5,623
Net cash provided by operating activities	54,096	1,859
Cash flows from investing activities:
Purchases of property and equipment	(19,818)	(36,849)
Proceeds on investment sales	5,290	7,550
Purchases of investments	(13,955)	(6,973)
Acquisitions, net of cash acquired	0	(18,963)
Net cash used in investing activities	(28,483)	(55,235)
Cash flows from financing activities:
Exercise of employee stock options and taxes paid related to the net shares settlement of stock awards	24,598	5,928
Payment of cash dividends	(38,685)	(38,329)
Repurchases of shares of common stock	(20,010)	(60,410)
Finance lease principal payments	(927)	(956)
Payment of debt issuance costs	(5,077)	0
Payments of debt	(407,500)	(25,000)
Proceeds from debt	460,000	130,000
Net cash used in financing activities	12,399	11,233
Effect of exchange rate changes on cash	(13,682)	(5,781)
Net increase (decrease) in cash and cash equivalents	24,330	(47,924)
Cash and cash equivalents, beginning of period	339,593	402,683
Cash and cash equivalents, end of period	$ 363,923	$ 354,759