Equity - Changes to Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	$ 1,083,985	$ 1,386,087
Total other comprehensive income (loss)	5,832	(17,547)
Balance at End of Period	1,137,680	1,445,266
Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	3,435	67,503
Other comprehensive income (loss) before reclassifications	5,007	(17,873)
Amounts reclassified from other accumulated comprehensive income (loss)	(193)	(692)
Total other comprehensive income (loss)	4,814	(18,565)
Balance at End of Period	8,249	48,938
Interest Rate Agreements Accounted for as Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(72,303)	(76,430)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from other accumulated comprehensive income (loss)	1,018	1,018
Total other comprehensive income (loss)	1,018	1,018
Balance at End of Period	$ (71,285)	$ (75,412)