Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
4.25% convertible senior notes due 2026
Financial Instruments
Debt Instrument, Convertible, Carrying Amount of Equity Component		$ 32,799
Fair value | Level 2 market data
Financial Instruments
Value	$ 1,967,918	2,592,014
Fair value | Level 2 market data | 5.00% senior notes due 2025
Financial Instruments
Value		594,866
Fair value | Level 2 market data | 8.375% Senior Notes Due 2026
Financial Instruments
Value	329,693	370,013
Fair value | Level 2 market data | 7.625% Senior Notes Due 2029
Financial Instruments
Value	543,345	654,080
Fair value | Level 2 market data | 5.375% senior notes due 2030
Financial Instruments
Value	545,940	641,400
Fair value | Level 2 market data | 4.25% convertible senior notes due 2026
Financial Instruments
Value	548,940	331,655
Carrying value
Financial Instruments
Value	1,506,413	2,125,444
Carrying value | 5.00% senior notes due 2025
Financial Instruments
Value		581,117
Carrying value | 8.375% Senior Notes Due 2026
Financial Instruments
Value	308,977	321,738
Carrying value | 7.625% Senior Notes Due 2029
Financial Instruments
Value	528,078	577,149
Carrying value | 5.375% senior notes due 2030
Financial Instruments
Value	593,567	593,234
Carrying value | 4.25% convertible senior notes due 2026
Financial Instruments
Value	$ 75,791	$ 52,206