Quarterly report pursuant to Section 13 or 15(d)

Available-for-sale Securities, Rollforward of the Allowance for Credit Losses (Details)

v3.23.1
Available-for-sale Securities, Rollforward of the Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]    
Allowance for credit losses at beginning of period $ (6,958) $ (14,238)
Additions on securities for which credit losses were not previously recorded (318) (2)
Increase (decrease) on securities with previously recorded credit losses 460 (1,112)
Writeoffs 894 3,779
Allowance for credit losses at end of period (5,922) (11,573)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]    
Allowance for credit losses at beginning of period (6,785) (12,851)
Additions on securities for which credit losses were not previously recorded 0 (2)
Increase (decrease) on securities with previously recorded credit losses 827 (2,493)
Writeoffs 684 3,779
Allowance for credit losses at end of period (5,274) (11,567)
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]    
Allowance for credit losses at beginning of period (173) (1,387)
Additions on securities for which credit losses were not previously recorded (318) 0
Increase (decrease) on securities with previously recorded credit losses (367) 1,381
Writeoffs 210 0
Allowance for credit losses at end of period $ (648) $ (6)