Debt Securities Available for Sale - Debt securities available- for-sale - Additional Information (Details) - USD ($)		12 Months Ended
	Oct. 15, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sale of debt securities available-for-sale		$ 0	$ 0	$ 235,992,000
Available-for-sale securities transfer to Held-to-maturity		0	6,531,092,000	0
Gross unrealized losses		1,373,513,000	1,759,691,000
US Treasury Securities
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sale of debt securities available-for-sale				$ 236,000,000
Available-for-sale securities transfer to Held-to-maturity	$ 6,500,000,000
Available-for-sale securities transfer to Held-to-Maturity at par value	7,400,000,000
Gross unrealized losses	$ 873,000,000	$ 262,788,000	$ 498,278,000