Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 35,073	$ 48,915	$ 71,859	$ 123,508
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	6,100	6,170	12,239	12,150
Depreciation and amortization			7,257	10,471
Loss on disposal of fixed assets			193	260
Impairment of lease right-of-use asset			95	0
Deferred taxes			0	(1,936)
Accrued interest on note receivable - related party			(4)	(8)
Change in valuation of contingent payment liabilities			0	(4,960)
Changes, net of acquisitions, in:
Accounts receivable			(3,395)	(4,564)
Increase (Decrease) in Accounts and Other Receivables			6,256	(20,589)
Notes receivable - related party			204	204
Inventories			22,417	(53,222)
Prepaid expenses, income tax receivables, prepaid taxes, and other assets			(8,572)	(7,676)
Accounts payable and accrued expenses			(7,316)	(44,197)
Accrued incentive compensation			(4,551)	(6,537)
Payment for Contingent Consideration Liability, Operating Activities			0	(339)
Net Cash Provided by (Used in) Operating Activities			82,257	40,286
Cash flows from investing activities:
Capital expenditures	4,003	1,667	7,793	5,263
Payments to Acquire Intangible Assets			0	(2,000)	$ (2,000)
Payments to Acquire Short-term Investments			11,406	38,951
Proceeds from Sale of Short-term Investments			10,445	53,803
Net cash (used in)/provided by investing activities			(8,754)	7,589
Cash flows from financing activities:
Tax benefit from the exercise of options	606	140	870	415
Common stock purchased for treasury	(25,784)	(34,628)	(64,235)	(77,027)
Cash dividends paid on common stock			(31,895)	(33,389)
Payment for Contingent Consideration Liability, Financing Activities			0	(4,770)
Net cash used in financing activities			(90,678)	(114,771)
Effect of Exchange Rate on Cash and Cash Equivalents			518	(1,674)
Net decrease in cash and cash equivalents			(16,657)	(68,570)
Payments to Noncontrolling Interests			4,582	0
Payments to Noncontrolling Interests			4,582	0
Payments for Other Operating Activities			26
Payments to Acquire Intangible Assets			0	2,000	2,000
Cash and cash equivalents	$ 258,056	$ 150,929	258,056	150,929	$ 274,713	$ 219,499
Short-Term Lease Payments			(1,939)	(3,457)
Payment for Contingent Consideration Liability, Operating Activities			0	339
Payment for Contingent Consideration Liability, Financing Activities			$ 0	$ 4,770