Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows From Operating Activities:
Net loss	$ (16,467)	$ (8,987)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	37,394	38,612
Amortization of debt issuance costs and discounts	1,542	1,532
Deferred income tax benefit	(8,417)	(6,531)
Equity-based compensation	4,482	6,982
Other, including loss on sale or disposal of assets, net	3,221	4,420
Changes in assets and liabilities:
Accounts receivable	(1,361)	3,408
Inventories	(3,936)	(15,601)
Prepaid expenses and other current assets	(6,863)	(7,653)
Accounts payable and accrued expenses	(345)	5,599
Accrued salaries, wages and benefits	5,377	(2,841)
Deferred revenue	42,072	53,584
Other accrued liabilities	(1,276)	(5,675)
Right of use assets and operating lease liabilities	104	201
Other assets and liabilities	(5,231)	3,744
Net cash provided by operating activities	50,296	70,794
Cash Flows From Investing Activities:
Capital expenditures	(69,758)	(35,110)
Net cash used in investing activities	(69,758)	(35,110)
Cash Flows From Financing Activities:
Repayments of long-term debt	(3,000)	(3,000)
Proceeds from draws on revolving credit facility	20,000
Repayments of revolving credit facility	(20,000)
Purchase of treasury stock		(89,736)
Payment of tax withholdings on equity-based compensation through shares withheld	(5,569)	(7,738)
Exercise of stock options	565	1,127
Other financing activities	(93)	(211)
Net cash used in financing activities	(8,097)	(99,558)
Change in Cash and Cash Equivalents, including Restricted Cash	(27,559)	(63,874)
Cash and Cash Equivalents, including Restricted Cash—Beginning of period	82,320	444,486
Cash and Cash Equivalents, including Restricted Cash—End of period	54,761	380,612
Supplemental Disclosure of Noncash Investing and Financing Activities
Capital expenditures in accounts payable	$ 45,548	31,483
Treasury stock purchases not yet settled in other accrued liabilities		$ 20,169