Fair Value - Measurement on Recurring and Nonrecurring Basis (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Financial assets:
Impaired loans, net	$ 596,863	$ 404,896
Financial liabilities:
Allowance for credit losses on impaired loans	$ 145,700
Number of impaired loans | loan	27
Aggregate carrying value of impaired loans before reserves	$ 596,900
Unrealized impairment losses on held-for-sale	$ 900
Number of impaired loans held-for-sale | loan	4
Unrealized impairment losses	$ 14,900
Carrying Value
Financial assets:
Derivative financial instruments	1,912	6,547
Financial liabilities:
Derivative financial instruments	1,115	1,021
Fair Value
Financial assets:
Derivative financial instruments	1,912	6,547
Financial liabilities:
Derivative financial instruments	1,115	$ 1,021
Recurring basis | Carrying Value
Financial assets:
Derivative financial instruments	1,912
Financial liabilities:
Derivative financial instruments	1,115
Recurring basis | Fair Value
Financial assets:
Derivative financial instruments	1,912
Financial liabilities:
Derivative financial instruments	1,115
Nonrecurring basis | Carrying Value
Financial assets:
Loans held-for-investment	451,114
Loans held-for-sale	14,054
Impaired loans, net	465,168
Nonrecurring basis | Fair Value
Financial assets:
Loans held-for-investment	451,114
Loans held-for-sale	14,054
Impaired loans, net	465,168
Level 1 | Recurring basis
Financial assets:
Derivative financial instruments	0
Financial liabilities:
Derivative financial instruments	0
Level 1 | Nonrecurring basis
Financial assets:
Loans held-for-investment	0
Loans held-for-sale	0
Impaired loans, net	0
Level 2 | Recurring basis
Financial assets:
Derivative financial instruments	1,536
Financial liabilities:
Derivative financial instruments	1,115
Level 2 | Nonrecurring basis
Financial assets:
Loans held-for-investment	0
Loans held-for-sale	14,054
Impaired loans, net	14,054
Level 3 | Recurring basis
Financial assets:
Derivative financial instruments	376
Financial liabilities:
Derivative financial instruments	0
Level 3 | Nonrecurring basis
Financial assets:
Loans held-for-investment	451,114
Loans held-for-sale	0
Impaired loans, net	$ 451,114