Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 552,827	$ 396,097
Short-term investment securities	14,420	14,687
TOTAL CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENT SECURITIES	567,247	410,784
Accounts receivable, net of allowance for doubtful accounts of $7,038 at December 31, 2021 and $21,490 at December 31, 2020	105,894	124,093
Inventories	290,235	314,928
Prepaid income taxes	19,586	29,480
Prepaid expenses and other current assets	46,847	41,492
Total current assets	1,029,809	920,777
PROPERTY AND EQUIPMENT, net	468,365	466,628
Operating Lease, Right-of-Use Asset	39,847	46,571
Long-term Investment Securities	4,620	12,974
GOODWILL	43,439	33,001
INTANGIBLE ASSETS, net	188,311	197,231
Deferred Income Tax Assets, Net	42,604	31,034
Other Assets	63,743	55,475
TOTAL ASSETS	1,880,738	1,763,691
CURRENT LIABILITIES:
Accounts payable	81,128	71,864
Accrued liabilities	118,195	97,021
Accrued Income Taxes, Current	1,454	303
Contingent earn-out liability	0	26,300
Total current liabilities	200,777	195,488
Contingent earn-out liability, Noncurrent	2,589	0
Other Liabilities	41,830	47,835
Deferred Income Tax Liabilities, Net	1,490	1,663
Accrued Income Taxes, Noncurrent	18,021	16,440
COMMITMENTS AND CONTINGENCIES	0	0
STOCKHOLDERS' EQUITY:
Convertible preferred stock, $1.00 par value Authorized-500 shares; Issued and outstanding - none	0	0
Common stock, $0.10 par value - Authorized-80,000 shares; Issued 21,280 and 21,058 shares at December 31, 2021 and 2020, respectively, and outstanding 21,280 and 21,058 shares at December 31, 2021 and 2020, respectively.	2,128	2,106
Additional paid-in capital	721,412	693,068
Treasury Stock, Value	(27)	(39)
Retained earnings	911,787	808,652
Accumulated other comprehensive loss	(19,269)	(1,522)
Total stockholders' equity	1,616,031	1,502,265
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,880,738	$ 1,763,691