CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income	$ 74,173	$ 40,553
Adjustments to reconcile net income to net cash provided by operating activities, net of effects of acquisitions
Depreciation	24,729	26,440
Amortization of intangible assets	3,862	4,023
Share-based compensation expense	7,902	6,122
Deferred income taxes	(347)	1,012
Investment loss (gain)	5,518	(3,713)
Other	(1,383)	425
Changes in operating assets:
Change in accounts receivable	(6,626)	(12,993)
Change in inventory	(25,074)	6,490
Change in other operating assets	(2,282)	2,899
Changes in operating liabilities:
Change in accounts payable	(8,549)	11,266
Change in accrued liabilities	(13,751)	(8,310)
Change in income tax payable	16,461	(4,100)
Change in other operating liabilities	(2,316)	(1,918)
Net cash flows provided by operating activities	72,317	68,196
Cash flows from investing activities
Acquisitions, net of cash received	(13,269)
Purchases of property, plant and equipment	(38,542)	(17,179)
Proceeds from sale of property, plant and equipment	188	886
Proceeds from short-term investments	3,046	2,085
Purchases of short-term investments	(5,998)	(4,364)
Other	(311)	8,173
Net cash and cash equivalents used in investing activities	(54,886)	(10,399)
Cash flows from financing activities
Advances on lines of credit and short-term debt	37,782	2,820
Repayments of lines of credit and short-term debt	(26,883)	(75,696)
Proceeds from long-term debt	45,000	215,000
Repayments of long-term debt	(123,545)	(179,361)
Net proceeds from issuance of common stock	84	754
Repayment of and proceeds from finance lease obligation	(61)	(141)
Taxes paid related to net share settlement	(8,032)	(9,293)
Capital contribution from noncontrolling interests	3	1,003
Other	(207)	(499)
Net cash and cash equivalents used in provided by financing activities	(75,859)	(45,413)
Effect of exchange rate changes on cash and cash equivalents	(2,385)	(1,812)
Change in cash and cash equivalents, including restricted cash	(60,813)	10,572
Cash and cash equivalents, beginning of period, including restricted cash	366,818	320,529
Cash and cash equivalents, end of period, including restricted cash	306,005	331,101
Supplemental Cash Flow Information
Interest paid during the period	878	2,704
Taxes paid during the period	476	12,284
Non-cash investing and financing activities:
Accounts payable balance related to the purchase of property, plant and equipment	$ 22,904	$ 7,960