Loan Portfolio - Schedule of Carrying Value of Loan Portfolio Based on Internal Risk Ratings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Integer
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	99
Amortized Cost Basis	$ 6,569,169
Year 1	2,291,838
Year 2	276,792
Year 3	2,073,121
Year 4	1,791,494
Year 5	$ 135,924
Risk Rating One
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	1
Amortized Cost Basis	$ 35,699
Year 4	$ 35,699
Risk Rating Two
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	7
Amortized Cost Basis	$ 703,714
Year 1	439,981
Year 4	236,735
Year 5	$ 26,998
Risk Rating Three
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	74
Amortized Cost Basis	$ 4,649,076
Year 1	1,851,857
Year 2	276,792
Year 3	1,991,121
Year 4	431,913
Year 5	$ 97,393
Risk Rating Four
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	15
Amortized Cost Basis	$ 1,154,147
Year 3	67,000
Year 4	$ 1,087,147
Risk Rating Five
Financing Receivable Allowance For Credit Losses [Line Items]
Number of Loans | Integer	2
Amortized Cost Basis	$ 26,533
Year 3	15,000
Year 5	$ 11,533