Represents the weighted average life of the available for sale securities portfolio.

No definition available.

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- Definition

Contractual maturities of investments.

+ References

No definition available.

+ Details

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- Definition

Amount, after allowance for credit loss, of accrued interest 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/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 3A
-URI https://asc.fasb.org/extlink&oid=124269663&loc=SL120267853-210455

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2A
-URI https://asc.fasb.org/extlink&oid=126970911&loc=SL121698322-111563

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 3B
-URI https://asc.fasb.org/extlink&oid=124269663&loc=SL120267856-210455

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of increase (decrease) in allowance for credit loss of 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 326
-SubTopic 30
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455

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- Definition

Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of realized 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 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563

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- Definition

Amount of 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

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Investment Securities Available for Sale, at Fair Value - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Accrued interest	$ 400,000		$ 400,000		$ 700,000
Unrealized gains (losses) on investments	17,400,000	$ 5,400,000	20,500,000	$ 11,500,000
Realized loss	18,001,000	9,885,000	$ 18,375,000	14,651,000
Contractual maturities (up to)			37 years
Weighted average life of available for sale securities portfolio			6 years 6 months		5 years 9 months 18 days
Allowance for credit loss	0		$ 0		$ 0
Debt securities, allowance for credit loss, period increase (decrease)	0	0	0	0
Non-Agency RMBS
Debt Securities, Available-for-sale [Line Items]
Realized loss		4,841,000	374,000	4,020,000
Non-Agency RMBS \| Non-Agency RMBS Held In Securitization Trust
Debt Securities, Available-for-sale [Line Items]
Realized loss		$ (4,800,000)		$ (4,800,000)
ABS
Debt Securities, Available-for-sale [Line Items]
Unrealized gains (losses) on investments	$ (15,900,000)		$ (15,900,000)