Summary of Significant Accounting Policies - Summary of Corrections (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basis Of Presentation [Line Items]
Proceeds from sales of investment securities available for sale	$ 565,400	$ 2,649,686	$ 2,923,787
Purchases of investment securities available for sale	(6,877,712)	(6,036,179)	(4,300,021)
Net cash used in investing activities	$ 4,384,166	2,352,973	$ 2,153,862
As Reported
Basis Of Presentation [Line Items]
Proceeds from sales of investment securities available for sale		4,054,670
Purchases of investment securities available for sale		(7,441,163)
Net cash used in investing activities		2,352,973
Adjustment
Basis Of Presentation [Line Items]
Proceeds from sales of investment securities available for sale		(1,404,984)
Purchases of investment securities available for sale		1,404,984
Net cash used in investing activities		$ 0