Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Net Carrying Amount Of Equity Component Of Convertible Notes [Abstract]

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Convertible Senior Notes - Schedule of Net Carrying Amount of Liability and Equity Component of Convertible Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2020	Mar. 31, 2018
Convertible senior notes due 2023
Net Carrying Amount of Equity Component of Convertible Notes [Abstract]
Debt discount for conversion option	$ 125,000
Convertible debt \| Convertible senior notes due 2025
Net Carrying Amount of Liability Component of Convertible Notes [Abstract]
Principal	1,150,000	$ 1,150,000
Unamortized debt discount	0	(157,983)
Unamortized issuance costs	(12,576)	(12,667)	$ (17,000)
Net carrying amount	1,137,424	979,350
Net Carrying Amount of Equity Component of Convertible Notes [Abstract]
Debt discount for conversion option	0	220,061	$ 220,000
Issuance costs	0	(4,035)
Net carrying amount	0	216,026
Convertible debt \| Convertible senior notes due 2023
Net Carrying Amount of Liability Component of Convertible Notes [Abstract]
Principal	149,194	149,194
Unamortized debt discount	0	(8,641)
Unamortized issuance costs	(507)	(815)
Net carrying amount	148,687	139,738		$ 367,000
Net Carrying Amount of Equity Component of Convertible Notes [Abstract]
Debt discount for conversion option	0	32,427
Issuance costs	0	(765)
Net carrying amount	$ 0	$ 31,662