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Debt, Finance Leases and Other Financing Obligations - Schedule of Convertible Senior Notes Balances (Detail) - Convertible senior notes due 2025 - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Aug. 15, 2019
Liability:
Principal	$ 350,000,000	$ 350,000,000	$ 350,000,000
Less: debt discount and issuance costs, net of accumulated accretion	(41,457,000)	(53,581,000)
Net carrying amount	308,543,000	296,419,000
Equity, net of deferred tax	$ 44,731,000	$ 44,731,000

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