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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- Definition

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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- Definition

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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No definition available.

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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		6 Months Ended
	Jun. 30, 2020 USD ($) investment	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) investment	Jun. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) investment
Investment Holdings [Line Items]
Available-for-sale securities	$ 173,737,000		$ 173,737,000			$ 239,334,000
Trading securities	142,699,000		142,699,000			$ 860,540,000
Trading securities acquired	10,000,000	$ 115,000,000	67,000,000	$ 269,000,000
Trading securities sold	86,000,000	132,000,000	705,000,000	161,000,000
Increase (decrease) in valuation of trading securities	42,000,000	18,000,000	(221,000,000)	40,000,000
Available-for-sale securities purchased	0	4,000,000	31,000,000	9,000,000
Available-for-sale securities sold	9,000,000	25,000,000	55,000,000	67,000,000
Net realized gains on AFS securities	$ 1,000,000	$ 3,000,000	$ 5,000,000	$ 9,000,000
Number of AFS securities (in investments) \| investment	94		94			107
Number of securities in unrealized loss position \| investment	13		13			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	$ 3,846,000		$ 3,846,000			$ 29,000
CECL credit allowance	1,471,000		1,471,000		$ 1,525,000	0
Interest Only Senior Trading Securities
Investment Holdings [Line Items]
Debt securities, trading	33,000,000		33,000,000			64,000,000
Unpaid principal balance	0		0			84,000,000
Certificated Servicing Strips
Investment Holdings [Line Items]
Debt securities, trading	14,000,000		14,000,000			36,000,000
Re-preforming Loans Securities [Member]
Investment Holdings [Line Items]
Debt securities, trading	11,000,000		11,000,000			55,000,000
Residential
Investment Holdings [Line Items]
Available-for-sale securities	150,000,000		150,000,000			230,000,000
AFS securities, contractual maturities	21,000,000		21,000,000
Marketable securities, due from five to ten years	2,000,000		2,000,000
CECL credit allowance	37,785,000		37,785,000		$ 37,717,000	32,940,000
Residential \| Sequoia Choice
Investment Holdings [Line Items]
Available-for-sale securities	118,000,000		118,000,000			141,000,000
Residential \| Other Third Party Securities
Investment Holdings [Line Items]
Available-for-sale securities	33,000,000		33,000,000			90,000,000
Third Party Multifamily Mortgage-backed Securities
Investment Holdings [Line Items]
Available-for-sale securities	23,000,000		23,000,000			9,000,000
Mezzanine
Investment Holdings [Line Items]
Available-for-sale securities	0		0			13,687,000
Gross unrealized losses	0		0			0
CECL credit allowance	0		0
Mezzanine \| Subordinate Securities
Investment Holdings [Line Items]
Available-for-sale securities	0		0			13,687,000
Trading securities	3,514,000		3,514,000			538,489,000
Mezzanine \| Sequoia securities
Investment Holdings [Line Items]
Trading securities	4,000,000		4,000,000			39,000,000
Mezzanine \| Re-preforming Loans Securities [Member]
Investment Holdings [Line Items]
Trading securities	0		0			30,000,000
Mezzanine \| Other Third Party Securities
Investment Holdings [Line Items]
Trading securities	0		0			104,000,000
Mezzanine \| Third Party Multifamily Mortgage-backed Securities
Investment Holdings [Line Items]
Trading securities	0		0			395,000,000
Mezzanine \| Trading securities
Investment Holdings [Line Items]
Unpaid principal balance	4,000,000		4,000,000			537,000,000
Residential Subordinate Securities \| Trading securities
Investment Holdings [Line Items]
Unpaid principal balance	272,000,000		272,000,000			302,000,000
Subordinate Securities
Investment Holdings [Line Items]
Available-for-sale securities	173,737,000		173,737,000			199,855,000
Gross unrealized losses	3,846,000		3,846,000			0
CECL credit allowance	1,471,000		1,471,000
Subordinate Securities \| Credit Risk Transfer (CRT) Securities
Investment Holdings [Line Items]
Trading securities	50,000,000		50,000,000			90,000,000
Subordinate Securities \| Other Third Party Securities
Investment Holdings [Line Items]
Trading securities	52,000,000		52,000,000			82,000,000
Subordinate Securities \| Third Party Multifamily Mortgage-backed Securities
Investment Holdings [Line Items]
Trading securities	49,000,000		49,000,000			76,000,000
Subordinate \| Subordinate Securities
Investment Holdings [Line Items]
Available-for-sale securities	173,737,000		173,737,000			199,855,000
Trading securities	$ 106,325,000		$ 106,325,000			$ 171,984,000