CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 59,786	$ 45,224
Depreciation and amortization	144,925	156,762
Other operating activities and non-cash items	14,100	(2,821)
Changes in assets and liabilities	(56,499)	(23,419)
Net cash provided by operating activities	162,312	175,746
Cash flows from investing activities:
Payments for property, plant and equipment	(96,169)	(98,224)
Proceeds from sale of property, plant and equipment	3,439	652
Proceeds from foreign exchange forward contracts	740	20,267
Payments for foreign exchange forward contracts	(24,596)	(20,358)
Payments for short-term investments	(111,760)	(172,409)
Proceeds from sale of short-term investments	16,014	21,549
Proceeds from maturities of short-term investments	121,684	92,655
Other investing activities	4,545	164
Net cash used in investing activities	(86,103)	(155,704)
Cash flows from financing activities:
Proceeds from revolving credit facilities	0	370,000
Payments of revolving credit facilities	0	(370,000)
Proceeds from short-term debt	5,012	11,042
Payments of short-term debt	(5,669)	(5,840)
Payments of long-term debt	(29,100)	(35,980)
Payments of finance lease obligations	(19,684)	(15,148)
Payments of dividends	(19,383)	(18,430)
Other financing activities	(1,053)	(1,850)
Net cash used in financing activities	(69,877)	(66,206)
Effect of exchange rate fluctuations on cash, cash equivalents and restricted cash	(8,164)	(2,943)
Net decrease in cash, cash equivalents and restricted cash	(1,832)	(49,107)
Cash, cash equivalents and restricted cash, beginning of period	1,120,617	962,406
Cash, cash equivalents and restricted cash, end of period	1,118,785	913,299
Non-cash investing and financing activities:
Property, plant and equipment included in capital expenditures payable	195,405	177,615
Right of use assets acquired through finance lease liabilities	17,811	17,513
Right of use assets acquired through operating lease liabilities	$ 2,321	$ 3,180