Condensed Consolidated Statements of Cash Flows $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)
Operating activities
Net income	$ 42,962	$ 9,008
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation, amortization and accretion	11,786	8,123
ARO acceleration	293	0
Amortization of debt related costs	246	(61)
Changes in fair value of contingent assets and liabilities	18,400	300
Gain on extinguishment of debt	0	(889)
Provision for excess and obsolete inventory	2,519	1,395
Stock-based compensation	5,623	3,317
Gain on sale of assets	0	(15,263)
Deferred taxes	14,180	4,581
Long-term income tax receivable	(396)	(573)
Long-term income tax payable and other long-term liabilities	779	728
Other	829	655
(Decreases) increases in cash from operating assets and liabilities:
Accounts receivable	(85,155)	(2,346)
Inventory	(1,634)	3,889
Other current assets	(104)	(536)
Other long-term assets	(533)	0
Accounts payable	1,506	4,110
Accrued expenses and other liabilities	(1,037)	(6,620)
Net cash provided by operating activities	10,264	9,818
Investing activities
Capital expenditures	(3,190)	(2,520)
Proceeds from sale of assets, net	1,800	15,823
Net cash (used in) provided by investing activities	(1,390)	13,303
Financing activities
Payments on long-term debt and other borrowings	(2,609)	(35,572)
Proceeds from stock option exercises	5,357	2,043
Proceeds from issuance of common stock	577	337
Payments for minimum statutory tax withholding related to net share settlement of equity awards	(5,504)	(1,599)
Net cash used in financing activities	(2,179)	(34,791)
Effect of foreign exchange rates on cash, cash equivalents and restricted cash	151	(21)
Net increase (decrease) in cash, cash equivalents and restricted cash	6,846	(11,691)
Cash, cash equivalents and restricted cash, beginning of period	100,651	82,694
Cash, cash equivalents and restricted cash, end of period	107,497	71,003
Reconciliation to amounts within the condensed consolidated balance sheets
Cash and cash equivalents	105,355	68,861
Restricted cash included in other long-term assets	2,142	2,142
Cash, cash equivalents and restricted cash at end of period	$ 107,497	$ 71,003