Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income (loss)	$ 9,444	$ 102,267
Reconciliation of net income to net cash provided by operating activities:
Depreciation, amortization, and accretion	15,427	17,215
Gain on GP Sale	0	(120,574)
Impairment and other charges	2,262	449
Gain on investments	(390)	(5,613)
Equity-based compensation expense	2,263	2,554
Provision for doubtful accounts	244	216
Amortization and expense of financing costs	1,573	1,429
Insurance recoveries associated with damaged equipment	(3,750)	(110)
Gain on sale of assets	(719)	(275)
Other non-cash charges	(313)	(176)
Changes in operating assets and liabilities:
Accounts receivable	(14,581)	(15,694)
Inventories	4,519	5,456
Prepaid expenses and other current assets	(2,282)	(2,442)
Trade accounts payable and accrued expenses	11,185	21,295
Other	(1,079)	(1,411)
Net cash provided by (used in) operating activities	23,803	7,607
Investing activities:
Purchases of property, plant, and equipment, net	20,412	12,489
Proceeds from GP Sale, net of cash divested	0	18
Proceeds from sale of property, plant, and equipment	1,194	754
Proceeds from insurance recoveries associated with damaged equipment	3,750	110
Other investing activities	(451)	1,156
Net cash used in investing activities	(15,919)	(10,451)
Financing activities:
Proceeds from long-term debt	1,667	0
Principal payments on long-term debt	(3,267)	(29,320)
Finance Lease, Principal Payments	1,174	0
Debt issuance costs and other financing activities	0	(455)
Net cash used in financing activities	(2,774)	(29,775)
Effect of exchange rate changes on cash	(329)	(896)
Increase (decrease) in cash and cash equivalents	4,781	(33,515)
Cash and cash equivalents and restricted cash 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 and restricted cash at beginning of period associated with continuing operations	31,551	67,317
Cash and cash equivalents and restricted cash at end of period associated with continuing operations	$ 36,332	$ 50,379