CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 109,668	$ 296,697
Depreciation and amortization	314,647	299,341
Other operating activities and non-cash items	4,784	(10,041)
Changes in assets and liabilities	(6,521)	(123,728)
Net cash provided by operating activities	422,578	462,269
Cash flows from investing activities:
Payments for property, plant and equipment	(282,309)	(340,208)
Proceeds from sale of property, plant and equipment	1,107	773
Proceeds from foreign exchange forward contracts	22,451	6,704
Payments for foreign exchange forward contracts	(50,170)	(66,898)
Payments for short-term investments	(355,135)	(298,351)
Proceeds from sale of short-term investments	47,000	14,120
Proceeds from maturities of short-term investments	193,315	155,910
Other investing activities	4,869	1,278
Net cash used in investing activities	(418,872)	(526,672)
Cash flows from financing activities:
Proceeds from revolving credit facilities	370,000	0
Payments of revolving credit facilities	(370,000)	0
Proceeds from short-term debt	11,043	18,112
Payments of short-term debt	(11,149)	(12,048)
Proceeds from issuance of long-term debt	0	190,000
Payments of long-term debt	(72,061)	(155,284)
Payments of finance lease obligations	(31,129)	(15,943)
Payments of dividends	(36,874)	(24,473)
Other financing activities	(1,589)	(5,089)
Net cash used in financing activities	(141,759)	(4,725)
Effect of exchange rate fluctuations on cash, cash equivalents and restricted cash	(16,091)	(25,020)
Net decrease in cash, cash equivalents and restricted cash	(154,144)	(94,148)
Cash, cash equivalents and restricted cash, beginning of period	962,406	831,521
Cash, cash equivalents and restricted cash, end of period	808,262	737,373
Non-cash investing and financing activities:
Property, plant and equipment included in capital expenditures payable	294,094	312,866
Right of use assets acquired through finance lease liabilities	26,053	33,629
Right of use assets acquired through operating lease liabilities	$ 3,651	$ 31,923