Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2
Available-for-sale Securities, Rollforward of the Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit losses at beginning of period $ (11,573) $ (18,170) $ (14,238) $ (22,528)
Additions on securities for which credit losses were not previously recorded (292) (3,861) (294) (3,881)
Increase (decrease) on securities with previously recorded credit losses (245) (3,531) (1,357) (2,376)
Writeoffs 2,447 7,797 6,226 11,020
Allowance for credit losses at end of period (9,663) (17,765) (9,663) (17,765)
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 (11,567) (16,699) (12,851) (17,889)
Additions on securities for which credit losses were not previously recorded (33) (11) (35) (31)
Increase (decrease) on securities with previously recorded credit losses (250) (297) (2,743) (2,137)
Writeoffs 2,447 1,853 6,226 4,903
Allowance for credit losses at end of period (9,403) (15,154) (9,403) (15,154)
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 (6) (1,471) (1,387) (4,639)
Additions on securities for which credit losses were not previously recorded (259) (3,850) (259) (3,850)
Increase (decrease) on securities with previously recorded credit losses 5 (3,234) 1,386 (239)
Writeoffs 0 5,944 0 6,117
Allowance for credit losses at end of period $ (260) $ (2,611) $ (260) $ (2,611)