Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities:
Net income (loss)	$ (15,490)	$ (3,124)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	62,879	71,696
Deferred income tax provision (benefit)	140	(4,272)
Net loss (gain) on sales of property and equipment	(2,828)	1,861
Noncash compensation	5,051	5,187
Other Noncash Income (Expense)	(983)	(4,435)
Increase (Decrease) in Accounts Receivable	(105,397)	(63,072)
Excluding the effects of acquisitions, increase (decrease) in cash from:
Inventory	(15,562)	12,107
Proceeds from Sale of Debt Securities, Available-for-sale	0
Other operating assets	(6,576)	(9,363)
Currency translation effect on working capital, excluding cash	(3,657)	2,768
Current liabilities	(28,422)	41,820
Increase (Decrease) in Other Noncurrent Liabilities	(13,637)	(2,350)
Total adjustments to net income (loss)	(108,992)	51,947
Net Cash Provided by (Used in) Operating Activities	(124,482)	48,823
Cash Flows from Investing Activities:
Purchases of property and equipment	(35,814)	(23,328)
Distributions of capital from unconsolidated affiliates	134	1,612
Dispositions of property and equipment	3,585	3,916
Payments for (Proceeds from) Other Investing Activities	(3,000)	1,157
Net Cash Provided by (Used in) Investing Activities	(35,095)	(12,157)
Repayments of Senior Debt		(30,500)
Cash Flows from Financing Activities:
Other financing activities	(2,062)	(1,784)
Net Cash Provided by (Used in) Financing Activities	(2,062)	(32,284)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(8,063)	(311)
Net Increase (Decrease) in Cash and Cash Equivalents	(169,702)	4,071
Cash and Cash Equivalents—Beginning of Period	538,114	452,016
Cash and Cash Equivalents—End of Period	368,412	$ 456,087
Proceeds from Sale of Debt Securities, Available-for-sale	$ 0