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Securities, at Fair Value - Impact of AFS Securities on AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
AOCI from AFS Securities:
Unrealized gain on AFS securities at beginning of period	$ 41,856	$ 75,752	$ 46,833	$ 79,607
Unrealized (losses) on securities available-for-sale	(4,937)	(9,589)	(9,914)	(13,444)
Change in AOCI from AFS securities	(4,937)	(9,589)	(9,914)	(13,444)
Balance at end of period	36,919	66,163	36,919	66,163
Agency MBS
AOCI from AFS Securities:
Unrealized (losses) on securities available-for-sale	$ (4,937)	$ (9,589)	$ (9,914)	$ (13,444)

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Other Comprehensive Income (Loss), Available-For-Sale Securities Adjustment Excluding Cumulative Effect, Net Of Tax, Portion Attributable To Parent

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- Definition

Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e681-108580

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Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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-Section 45
-Paragraph 11
-URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580

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