Quarterly report pursuant to Section 13 or 15(d)

Schedule of Available-for-sale Debt Securities in Unrealized Loss Positions (Details)

v3.23.3
Schedule of Available-for-sale Debt Securities in Unrealized Loss Positions (Details)
$ in Thousands
Sep. 30, 2023
USD ($)
numberOfPositions
Dec. 31, 2022
USD ($)
numberOfPositions
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Debt Securities, Available-for-sale, Number of Positions | numberOfPositions 659 704
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | numberOfPositions 553 553
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | numberOfPositions 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 8,807,525 $ 7,286,510
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (659,841) (334,191)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 8,807,525 7,286,510
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 659,841 334,191
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 8,807,184 7,168,694
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (659,820) (328,258)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 8,807,184 7,168,694
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 659,820 328,258
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 341 117,816
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (21) (5,933)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 341 117,816
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 21 $ 5,933