Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 5,662	$ (1,546)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Tax credits returned to State of Alaska	9,396	0
Tax credits used to offset production taxes	0	1,094
Depreciation and amortization	9,270	6,814
Equity-based compensation cost	298	2,399
Provision for doubtful accounts	1,724	919
Gain on sale of property and equipment	(151)	(661)
Amortization of loan issuance costs and debt discounts	2,089	1,865
Unrealized loss (gain) on foreign currency transactions	4,857	(607)
Deferred taxes	0	2,023
Changes in operating assets and liabilities	6,482	(1,506)
Net cash provided by operating activities	39,627	10,794
Cash flows from investing activities:
Purchases of property and equipment	(1,028)	(598)
Proceeds from sale of property and equipment	263	674
Net cash used in (provided by) investing activities	(765)	76
Cash flows from financing activities:
Long-term debt and finance lease repayments	(16,114)	(428)
Long-term debt borrowings	6,801	9,666
Proceeds from issuance of common stock	0	100
Purchase of treasury stock	0	(366)
Distribution to noncontrolling interest	(5,982)	(1,500)
Net cash (used in) provided by financing activities	(15,295)	7,472
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(840)	2
Net change in cash, cash equivalents and restricted cash	22,727	18,344
Cash, cash equivalents and restricted cash at the beginning of year	5,515	7,850
Cash, cash equivalents and restricted cash at the end of period	$ 28,242	$ 26,194