Fair Value of Assets and Liabilities - Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	$ 2,347,877	$ 2,876,524
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	$ 1,586,515	2,919,651
Senior unsecured notes | Senior unsecured notes, 4.750% coupon rate, due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	4.75%
Senior unsecured notes | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	9.75%
Senior unsecured notes | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	4.75%
Senior unsecured notes | Senior unsecured notes, 4.375% coupon rate, due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	4.375%
Senior unsecured notes | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	5.625%
Senior unsecured notes | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Coupon Rate	6.25%
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 4.750% coupon rate, due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	$ 249,628	249,348
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	495,710	987,903
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	493,473	492,199
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 4.375% coupon rate, due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	492,986	492,127
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	342,565	342,183
Senior unsecured notes | Carrying Amount | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	243,338	243,051
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 4.750% coupon rate, due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	211,250	257,695
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 9.750% coupon rate, due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	478,985	1,081,990
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 4.750% coupon rate, due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	284,375	491,480
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 4.375% coupon rate, due 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	317,130	480,763
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 5.625% coupon rate, due 2042
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	151,200	309,260
Senior unsecured notes | Estimated Fair Value | Senior unsecured notes, 6.250% coupon rate, due 2046
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	115,300	226,500
Secured debts | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	30,177	69,713
Secured debts | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured and secured debt	$ 28,275	$ 71,963