Number Of Available for Sale Securities

No definition available.

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- Definition

Number of Securities, Continuous Unrealized Loss Position More Than Twelve Months

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No definition available.

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

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount 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).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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- Definition

Amount of increase (decrease) of investment in debt and equity securities, measured at fair value with changes in fair value recognized in net income.

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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.

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No definition available.

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For investments which are quantified by principal amount, the principle balance held at close of period.

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Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash outflow to acquire securities classified as trading securities and held for investment purposes. Excludes payments for trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Real Estate Securities - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) investment	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) investment	Sep. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($) investment
Investment Holdings [Line Items]
Real estate securities	$ 144,162,000		$ 144,162,000			$ 860,540,000
Trading securities acquired	11,000,000	$ 66,000,000	78,000,000	$ 335,000,000
Trading securities sold	16,000,000	236,000,000	721,000,000	397,000,000
Increase (decrease) in valuation of trading securities	(4,000,000)	15,000,000	(225,000,000)	56,000,000
Available-for-sale securities	207,173,000		207,173,000			$ 239,334,000
Available-for-sale securities purchased	25,000,000	12,000,000	57,000,000	21,000,000
Available-for-sale securities sold	0	15,000,000	55,000,000	82,000,000
Net realized gains on AFS securities	$ 0	$ 4,000,000	$ 5,000,000	$ 13,000,000
Number of AFS securities (in investments) \| investment	96		96			107
Number of securities in unrealized loss position \| investment	7		7			1
Number of securities in a continuous unrealized loss position for twelve consecutive months or longer (in investments) \| investment	0		0			1
Gross unrealized losses	$ 2,507,000		$ 2,507,000			$ 29,000
CECL credit allowance	1,027,000		1,027,000		$ 1,471,000	0
Interest Only Senior Trading Securities
Investment Holdings [Line Items]
Debt securities, trading	28,000,000		28,000,000			64,000,000
Unpaid principal balance	0		0			84,000,000
Certificated Servicing Strips
Investment Holdings [Line Items]
Debt securities, trading	12,000,000		12,000,000			36,000,000
Re-preforming Loans Securities
Investment Holdings [Line Items]
Debt securities, trading	60,000,000		60,000,000			161,000,000
Third Party Multifamily Mortgage-backed Securities
Investment Holdings [Line Items]
Available-for-sale securities	48,000,000		48,000,000			9,000,000
Residential
Investment Holdings [Line Items]
Available-for-sale securities	160,000,000		160,000,000			230,000,000
AFS securities, contractual maturities	45,000,000		45,000,000
Marketable securities, due from five to ten years	3,000,000		3,000,000
CECL credit allowance	43,186,000		43,186,000		$ 37,785,000	32,940,000
Residential \| Sequoia Choice
Investment Holdings [Line Items]
Available-for-sale securities	124,000,000		124,000,000			141,000,000
Residential \| Other Third Party Securities
Investment Holdings [Line Items]
Available-for-sale securities	35,000,000		35,000,000			90,000,000
Mezzanine
Investment Holdings [Line Items]
Available-for-sale securities	2,016,000		2,016,000			13,687,000
Gross unrealized losses	0		0			0
CECL credit allowance	0		0
Mezzanine \| Re-preforming Loans Securities
Investment Holdings [Line Items]
Real estate securities	0		0			30,000,000
Mezzanine \| Trading securities
Investment Holdings [Line Items]
Unpaid principal balance	4,000,000		4,000,000			537,000,000
Mezzanine \| Sequoia securities
Investment Holdings [Line Items]
Real estate securities	4,000,000		4,000,000			39,000,000
Mezzanine \| Subordinate Securities
Investment Holdings [Line Items]
Real estate securities	3,651,000		3,651,000			538,489,000
Available-for-sale securities	2,016,000		2,016,000			13,687,000
Mezzanine \| Third Party Multifamily Mortgage-backed Securities
Investment Holdings [Line Items]
Real estate securities	0		0			395,000,000
Mezzanine \| Other Third Party Securities
Investment Holdings [Line Items]
Real estate securities	0		0			104,000,000
Subordinate Securities
Investment Holdings [Line Items]
Available-for-sale securities	205,157,000		205,157,000			199,855,000
Gross unrealized losses	2,507,000		2,507,000			0
CECL credit allowance	1,027,000		1,027,000
Subordinate Securities \| Re-preforming Loans Securities
Investment Holdings [Line Items]
Real estate securities	51,000,000		51,000,000			76,000,000
Subordinate Securities \| Other Third Party Securities
Investment Holdings [Line Items]
Real estate securities	55,000,000		55,000,000			82,000,000
Subordinate Securities \| Credit Risk Transfer (CRT) Securities
Investment Holdings [Line Items]
Real estate securities	50,000,000		50,000,000			90,000,000
Residential Subordinate Securities \| Trading securities
Investment Holdings [Line Items]
Unpaid principal balance	266,000,000		266,000,000			302,000,000
Subordinate \| Subordinate Securities
Investment Holdings [Line Items]
Real estate securities	112,420,000		112,420,000			171,984,000
Available-for-sale securities	$ 205,157,000		$ 205,157,000			$ 199,855,000