Annual report pursuant to Section 13 and 15(d)

Available-for-Sale Securities, Weighted Average Life Classifications (Details)

v3.24.0.1
Available-for-Sale Securities, Weighted Average Life Classifications (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]    
Less than or equal to 1 year $ 86  
Greater than 1 year and less than or equal to 3 years 17,577  
Greater than 3 years and less than or equal to 5 years 261,625  
Greater than 5 years and less than or equal to 10 years 6,848,236  
Greater than 10 years 1,199,625  
Available-for-sale securities, at fair value 8,327,149 $ 7,778,734
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Debt Securities, Available-for-sale [Line Items]    
Less than or equal to 1 year 86  
Greater than 1 year and less than or equal to 3 years 17,577  
Greater than 3 years and less than or equal to 5 years 261,625  
Greater than 5 years and less than or equal to 10 years 6,844,418  
Greater than 10 years 1,199,293  
Available-for-sale securities, at fair value 8,322,999 7,653,576
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Available-for-sale [Line Items]    
Less than or equal to 1 year 0  
Greater than 1 year and less than or equal to 3 years 0  
Greater than 3 years and less than or equal to 5 years 0  
Greater than 5 years and less than or equal to 10 years 3,818  
Greater than 10 years 332  
Available-for-sale securities, at fair value $ 4,150 $ 125,158