Short-Term Borrowings - Maturities of Outstanding Advances Under Repurchase Agreements (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	$ 3,004,690
Weighted-average maturity (in months)	3 months
Within 30 days
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	$ 300,240
Over 30 to 90 days
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	2,221,473
Over 90 to 180 days
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	372,517
Over 180 days to one year
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	10,460
Over one year to two year
Mortgage loans sold under agreement to repurchase
Unpaid principal balance	$ 100,000