New Authoritative Accounting Guidance (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan losses decrease	$ 436,432	$ 436,898	$ 458,655	$ 468,819	$ 362,510	$ 359,202
Adjustment due to adoption of ASUs	6,575,184	6,511,581	6,400,802	6,204,913	5,096,384	5,084,066
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment due to adoption of ASUs	$ 1,379,534	$ 1,300,980	1,218,445	$ 982,146	945,225	$ 883,645
Revision of Prior Period, Accounting Standards Update, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan losses decrease			(1,400)
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan losses decrease			(1,368)		$ 70,319
Adjustment due to adoption of ASUs			990
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment due to adoption of ASUs			$ 990