CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 299,868	$ 363,599
Restricted cash	7,679	3,219
Short-term investments	8,833	6,542
Accounts receivable, net of allowances of 4,936 and $4,324 at June 30, 2022 and December 31, 2021, respectively	401,196	358,496
Inventories	371,351	348,622
Prepaid expenses and other	125,686	107,194
Total current assets	1,214,613	1,187,672
Property, plant and equipment, net	671,654	582,079
Deferred income tax	20,189	21,256
Goodwill	145,898	149,890
Intangible assets, net	86,071	94,550
Other long-term assets	146,619	159,048
Total assets	2,285,044	2,194,495
Current liabilities:
Lines of credit	25,907	18,068
Accounts payable	219,329	221,254
Accrued liabilities and other	205,152	184,649
Income tax payable	40,253	29,682
Current portion of long-term debt	9,336	17,381
Total current liabilities	499,977	471,034
Long-term debt, net of current portion	229,912	265,574
Deferred tax liabilities	31,541	32,230
Other long-term liabilities	106,155	122,933
Total liabilities	867,585	891,771
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 45,288,669 shares and 45,017,774 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	36,376	36,195
Additional paid-in capital	478,374	471,649
Retained earnings	1,269,655	1,116,809
Treasury stock at cost, 9,272,513 shares at June 30, 2022 and at December 31, 2021	(337,112)	(336,894)
Accumulated other comprehensive loss	(93,974)	(50,517)
Total stockholders' equity	1,353,319	1,237,242
Noncontrolling interest	64,140	65,482
Total equity	1,417,459	1,302,724
Total liabilities and stockholders' equity	$ 2,285,044	$ 2,194,495