Unfunded Loan Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Credit Loss [Abstract]
Contractual obligation	$ 2,200,000		$ 2,200,000
Allowance
Beginning balance	113,525	$ 64,772	72,713	$ 110,044
Provision/New commitments - net	192,559	129,904	339,705	218,304
Other provision items	(29,913)	15,068	(1,033)	32,831
Transfer - funded loans	(168,377)	(110,613)	(303,591)	(262,048)
Ending balance	107,794	99,131	107,794	99,131
Unfunded Commitments
Beginning balance	1,413,840	1,161,696	1,776,976	1,673,018
Provision/New commitments - net	3,148,434	2,885,024	5,584,129	4,963,789
Other provision items	0	0	0	0
Transfer - funded loans	(2,345,348)	(2,083,128)	(5,144,179)	(4,673,215)
Ending balance	$ 2,216,926	$ 1,963,592	$ 2,216,926	$ 1,963,592