Unfunded Loan Commitments - Schedule of Allowance for Credit Losses and Recorded Investments in Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance
Beginning balance	$ 124,924	$ 72,713	$ 110,044
Provisions for unfunded loan commitments	308,275	396,521	264,324
Transfer - funded loans	(320,237)	(344,310)	(301,655)
Ending balance	112,962	124,924	72,713
Unfunded Commitments
Beginning balance	1,995,808	1,776,976	1,673,018
Provision/New commitments - net	6,602,803	6,180,805	5,512,841
Transfer - funded loans	(6,377,534)	(5,961,973)	(5,408,883)
Ending balance	2,221,077	1,995,808	$ 1,776,976
Adjustments
Allowance
Beginning balance	(26,094)
Ending balance	$ (26,094)	$ (26,094)