TWO Annual report pursuant to Section 13 and 15(d)

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

Available-for-sale Securities, Rollforward of the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	$ (22,528)
Additions on securities for which credit losses were not previously recorded	(4,555)	$ (44,359)
Reductions for securities sold	0	246,792
Increase (decrease) on securities with previously recorded credit losses	(5,208)	(14,081)
Writeoffs	18,053	36,531
Recoveries of amounts previously written off	0	(2,535)
Allowance for credit losses at end of period	(14,238)	(22,528)
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	(17,889)
Additions on securities for which credit losses were not previously recorded	(190)	(32,931)
Reductions for securities sold	0	0
Increase (decrease) on securities with previously recorded credit losses	(4,542)	385
Writeoffs	9,770	14,657
Recoveries of amounts previously written off	0	0
Allowance for credit losses at end of period	(12,851)	(17,889)
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	(4,639)
Additions on securities for which credit losses were not previously recorded	(4,365)	(11,428)
Reductions for securities sold	0	246,792
Increase (decrease) on securities with previously recorded credit losses	(666)	(14,466)
Writeoffs	8,283	21,874
Recoveries of amounts previously written off	0	(2,535)
Allowance for credit losses at end of period	$ (1,387)	$ (4,639)