Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities:
Net income	$ 9,700	$ 104,780
Warrants fair value adjustment	0	(143)
Reconciliation of net income to net cash provided by operating activities:
Depreciation, amortization, and accretion	24,061	25,524
Gain on GP Sale	0	(120,574)
Impairment and other charges	2,262	449
Loss (gain) on investments	159	(11,803)
Equity-based compensation expense	3,361	3,611
Provision for doubtful accounts	31	129
Amortization and expense of financing costs	2,378	2,320
Insurance recoveries associated with damaged equipment	(3,750)	(110)
Warrants fair value adjustment	0	(143)
Gain on sale of assets	(980)	(479)
Other non-cash credits	(425)	(359)
Changes in operating assets and liabilities:
Accounts receivable	(16,661)	(15,246)
Inventories	(5,707)	2,449
Prepaid expenses and other current assets	(3,782)	(2,927)
Trade accounts payable and accrued expenses	17,069	25,231
Other	(1,768)	(2,428)
Net cash provided by (used in) operating activities	25,948	10,424
Investing activities:
Purchases of property, plant, and equipment, net	32,678	14,620
Proceeds from GP Sale, net of cash divested	0	566
Proceeds from sale of property, plant, and equipment	1,489	1,016
Proceeds from insurance recoveries associated with damaged equipment	3,750	110
Other investing activities	(841)	764
Net cash used in investing activities	(28,280)	(12,164)
Financing activities:
Proceeds from long-term debt	1,695	0
Principal payments on long-term debt	(3,292)	(37,477)
Payments on financing lease obligations	(1,174)	0
Repurchase of common stock	0	(461)
Debt issuance costs and other financing activities	0	(718)
Net cash used in financing activities	(2,771)	(38,656)
Effect of exchange rate changes on cash	(1,201)	(1,635)
Decrease in cash and cash equivalents	(6,304)	(42,031)
Cash and cash equivalents at beginning of period	31,551	83,894
Cash and cash equivalents at beginning of period associated with discontinued operations	0	16,577
Cash and cash equivalents at beginning of period associated with continuing operations	31,551	67,317
Cash and cash equivalents at end of period associated with continuing operations	$ 25,247	$ 41,863