Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities:
Net Income	$ 97,403	$ 25,941	$ (49,307)
Excluding the effects of acquisitions, increase (decrease) in cash from:
Cost, Depreciation and Amortization	104,960	120,969	139,723
Accounts receivable	(83,075)	(50,732)	41,099
Inventory	(25,423)	(30,692)	7,313
Currency translation effect on working capital	(18,208)	(15,104)	(14,498)
Accounts payable and accrued liabilites	3,250	417	6
Increase (Decrease) in Other Current Liabilities	125,695	67,253	63,051
Increase (Decrease) in Other Noncurrent Liabilities	18,723	(5,711)	2,701
Provision for Other Credit Losses	0	0	29,549
Deferred income tax provision	(26,785)	829	(1,798)
Net loss (gain) on dispositions of property and equipment	(1,012)	(1,083)	769
Noncash compensation	12,057	10,370	11,008
Other Noncash Expense	2,370
Other Noncash Income		(1,574)	(4,302)
Total adjustments to net income	112,552	94,942	274,621
Cost, Depreciation and Amortization	104,960	120,969	139,723
Net Cash Provided by Operating Activities	209,955	120,883	225,314
Cash Flows from Investing Activities:
Purchases of property and equipment	(100,726)	(81,043)	(50,199)
Proceeds from Sale of Debt Securities, Available-for-sale	6,229	0	4,486
Distributions of capital from unconsolidated affiliates	2,520	705	3,298
Dispositions of property and equipment and life insurance proceeds	7,847	6,473	7,101
Payments for (Proceeds from) Other Investing Activities	(2,223)	(3,000)	1,157
Net Cash Used in Investing Activities	(86,353)	(76,865)	(34,157)
Cash Flows from Financing Activities:
Repayments of Senior Debt	(400,000)	0	(100,000)
Proceeds from (Payments for) Other Financing Activities	(4,968)	(1,862)	(1,682)
Net Cash Provided by (Used in) Financing Activities	(227,297)	(1,862)	(101,682)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations	(3,484)	(11,525)	(3,377)
Net Increase (Decrease) in Cash and Cash Equivalents	(107,179)	30,631	86,098
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	461,566	568,745	$ 538,114
Cash and Cash Equivalents-Beginning of Period	568,745
Cash and Cash Equivalents-End of Period	461,566	$ 568,745
Proceeds from Debt, Net of Issuance Costs	$ 177,671