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Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income
Net income (loss)	$ 46,459	$ (8,569)	$ 661
Other comprehensive income:
Unrealized gains on marketable securities	1
Total other comprehensive income	1
Total comprehensive income (loss)	$ 46,460	$ (8,569)	$ 661

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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