CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 295,045	$ 336,732
Restricted cash	2,592	4,367
Short-term investments	9,872	7,059
Accounts receivable, net of allowances of $4,686 and $5,852 at September 30, 2023 and December 31, 2022, respectively	414,188	369,233
Inventories	343,694	360,281
Prepaid expenses and other	117,191	83,999
Total current assets	1,182,582	1,161,671
Property, plant and equipment, net	736,126	736,730
Deferred income tax	35,788	35,308
Goodwill	143,745	144,757
Intangible assets, net	67,445	79,137
Other long-term assets	174,536	130,709
Total assets	2,340,222	2,288,312
Current liabilities:
Lines of credit	29,429	36,280
Accounts payable	161,079	160,442
Accrued liabilities and other	193,383	214,433
Income tax payable	29,892	19,682
Current portion of long-term debt	1,124	1,693
Total current liabilities	414,907	432,530
Long-term debt, net of current portion	22,645	147,470
Deferred tax liabilities	12,982	12,903
Unrecognized tax benefits	31,595	31,594
Other long-term liabilities	99,210	80,896
Total liabilities	581,339	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 45,936,090 shares and 45,469,722 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	36,817	36,503
Additional paid-in capital	502,482	494,773
Retained earnings	1,649,982	1,448,092
Treasury stock at cost 9,283,481 shares and 9,281,581 shares at September 30, 2023 and December 31, 2022, respectively	(337,986)	(337,490)
Accumulated other comprehensive loss	(161,633)	(128,233)
Total stockholders' equity	1,689,662	1,513,645
Noncontrolling interest	69,221	69,274
Total equity	1,758,883	1,582,919
Total liabilities and stockholders' equity	$ 2,340,222	$ 2,288,312