Debt (Summary of Senior Notes) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Net premiums, discounts, and issuance costs	$ (5,777)	$ (6,324)
Total senior notes	1,583,367	1,582,820
Other notes payable	39,698	35,766
Notes payable	1,623,065	1,618,586
Estimated fair value	$ 1,718,275	1,701,270
Senior Notes \| 5.500% unsecured senior notes due March 2026
Debt Instrument [Line Items]
Stated interest rate	5.50%
Face amount	$ 251,867	251,867
Senior Notes \| 5.000% unsecured senior notes due January 2027
Debt Instrument [Line Items]
Stated interest rate	5.00%
Face amount	$ 337,277	337,277
Senior Notes \| 7.875% unsecured senior notes due June 2032
Debt Instrument [Line Items]
Stated interest rate	7.875%
Face amount	$ 300,000	300,000
Senior Notes \| 6.375% unsecured senior notes due May 2033
Debt Instrument [Line Items]
Stated interest rate	6.375%
Face amount	$ 400,000	400,000
Senior Notes \| 6.000% unsecured senior notes due February 2035
Debt Instrument [Line Items]
Stated interest rate	6.00%
Face amount	$ 300,000	$ 300,000

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