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Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net loss	$ (129,660)	$ (196,696)	$ (141,219)
Other comprehensive income (loss):
Change in supplemental executive retirement plan pension liability, net of tax of $0, $0, and $0, respectively	(763)	(2,309)	(2,121)
Change in pension plan minimum liability, net of tax of $0, $0, and $0, respectively	4,235	1,741	(309)
Total comprehensive loss	$ (126,188)	$ (197,264)	$ (143,649)

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Represents Increase (Decrease) net of tax of supplemental executive retirement plan minimum liability adjustment in other comprehensive income.

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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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Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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