CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 323,146	$ 336,732
Restricted cash	2,761	4,367
Short-term investments	8,768	7,059
Accounts receivable, net of allowances of $5,861 and $5,852 at March 31, 2023 and December 31, 2022, respectively	369,054	369,233
Inventories	341,941	360,281
Prepaid expenses and other	76,101	83,999
Total current assets	1,121,771	1,161,671
Property, plant and equipment, net	755,707	736,730
Deferred income tax	36,185	35,308
Goodwill	145,937	144,757
Intangible assets, net	75,398	79,137
Other long-term assets	150,563	130,709
Total assets	2,285,561	2,288,312
Current liabilities:
Lines of credit	34,651	36,280
Accounts payable	143,694	160,442
Accrued liabilities and other	176,952	214,433
Income tax payable	33,876	19,682
Current portion of long-term debt	1,173	1,693
Total current liabilities	390,346	432,530
Long-term debt, net of current portion	89,636	147,470
Deferred tax liabilities	13,012	12,903
Other long-term liabilities	126,894	112,490
Total liabilities	619,888	705,393
Commitments and contingencies (See Note 9)
Stockholders' equity
Preferred stock - par value $1.00 per share; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock - par value $0.66 2/3 per share; 70,000,000 shares authorized; and 45,706,798 shares and 45,469,722 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	36,661	36,503
Additional paid-in capital	494,598	494,773
Retained earnings	1,519,242	1,448,092
Treasury stock, at cost, 9,281,581 shares at March 31,2023 and 9,281,581 shares at December 31, 2022	(337,490)	(337,490)
Accumulated other comprehensive loss	(117,546)	(128,233)
Total stockholders' equity	1,595,465	1,513,645
Noncontrolling interest	70,208	69,274
Total equity	1,665,673	1,582,919
Total liabilities and stockholders' equity	$ 2,285,561	$ 2,288,312