CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ (3,265)	$ 7,565
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation	67,109	39,849
Amortization of acquisition intangibles	6,508	813
Provision for doubtful accounts	3,153	2,299
Amortization of debt discount and debt issuance costs	1,004	337
Loss on disposition of long-lived assets	3,392	861
Stock-based compensation	4,028	3,511
Deferred income taxes	(3,871)	(3,236)
Gain on equity investments	(3,401)	(1,793)
Loss on pension settlement	1,725
Unrealized gain on foreign currency		(81)
Changes in operating assets and liabilities, excluding the effects of acquisitions and dispositions:
Accounts receivable	(81)	1,226
Customer receivable	(2,298)	(21,586)
Prepaid income taxes	6,206
Accrued taxes	3,227	(1,360)
Materials and supplies, prepayments, and other current assets	(12,868)	(73)
Accounts payable and accrued liabilities, advance payments and deposits and other current liabilities	(9,970)	(1,745)
Other assets	(3,291)	782
Other liabilities	(6,587)	91
Net cash provided by operating activities	50,720	27,460
Cash flows from investing activities:
Capital expenditures	(71,204)	(35,424)
Reimbursable capital expenditures	(3,894)	(6,508)
Purchases of strategic investments	(1,400)	(5,242)
Receipt of capital government grants		3,292
Sale of businesses, net of transferred cash of $0 and $0.9 million, respectively	1,835	18,597
Net cash used in investing activities	(74,663)	(25,285)
Cash flows from financing activities:
Dividends paid on common stock	(5,348)	(5,411)
Distributions to noncontrolling interests	(1,375)	(4,488)
Finance lease payment	(574)
Term loan - repayments	(938)	(1,883)
Revolving credit facility - borrowings	49,000
Revolving credit facility - repayments	(24,500)
Proceeds from customer receivable credit facility	8,000	17,582
Repayment of customer receivable credit facility	(2,258)	(384)
Purchases of common stock - stock- based compensation	(1,169)	(1,713)
Purchases of common stock - share repurchase plan	(941)	(2,219)
Investments made by minority shareholders in consolidated affiliates	11
Repurchases of noncontrolling interests	(4,502)	(12,699)
Net cash provided by (used in) financing activities	15,406	(11,215)
Net change in cash, cash equivalents, and restricted cash	(8,537)	(9,040)
Total cash, cash equivalents, and restricted cash, beginning of period	80,697	104,997
Total cash, cash equivalents, and restricted cash, end of period	72,160	95,957
Noncash investing activity:
Purchases of property, plant and equipment included in accounts payable and accrued expenses	$ 13,303	$ 11,990