Fair Value, Option, Loans Held As Assets, Aggregate Amount In Foreclosure

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- Definition

The weighted average FICO score for borrowers at the time loans were originated.

+ References

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Financing Receivable, Loan To Value Ratio

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- Definition

Financing Receivable, Number Of Loans In Foreclosure

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No definition available.

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- Definition

Financing Receivable, Number Of Loans Past Due

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No definition available.

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- Definition

Financing Receivables, Weighted Average Interest Rate

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No definition available.

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- Definition

Loans Receivable, Percentage Bearing Fixed Interest, Percentage Rate

+ References

No definition available.

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- Definition

Percentage Of Loan Portfolio

+ References

No definition available.

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- Definition

Principal Balance of Loans Acquired During Period

+ References

No definition available.

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- Definition

Principal Balance of Loans Sold During Period

+ References

No definition available.

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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.

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- Definition

Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Footnote 3
-Subsection 29

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-Topic 948
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-Section S99
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- Definition

For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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- Definition

This item represents the aggregate fair value of loans held as assets that are 90 days or more past due for which the fair value option has been elected.

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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- Definition

Amount of increase (decrease) in investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types.

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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- Definition

Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions.

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Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.

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Residential Loans - Additional Information (Details)	3 Months Ended		9 Months Ended		12 Months Ended
Residential Loans - Additional Information (Details)	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) loan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Transfers from loans held-for-sale to loans held-for-investment			$ 1,981,170,000	$ 643,876,000
Transfers from loans held-for-investment to loans held-for-sale			15,717,000	98,853,000
Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	$ 5,922,259,000		5,922,259,000		$ 5,115,210,000
Held-for-sale residential loans \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	553,958,000		553,958,000		632,817,000
Held-for-sale residential loans \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	2,181,195,000		2,181,195,000		620,062,000
Redwood \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	$ 3,187,106,000		$ 3,187,106,000		$ 3,862,331,000
Redwood \| Fixed rate residential mortgage
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Weighted average coupon rate	4.08%		4.08%
Residential Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans \| loan			1,232		2,009
Loan Principal	$ 859,000,000		$ 859,000,000		$ 1,410,000,000
Residential loans	866,000,000		866,000,000		1,430,000,000
Loans held-for-investment, delinquent greater than 90 days					$ 500,000
Number of loans in foreclosure \| loan					0
Principal value of loans purchased	1,790,000,000	$ 1,430,000,000	5,520,000,000	3,720,000,000
Principal balance of loans sold during period	1,900,000,000	1,050,000,000	5,830,000,000	3,080,000,000
Gain (loss) on assets measured at fair value on a non-recurring basis	6,000,000	15,000,000	16,000,000	29,000,000
Loan pledged as collateral	622,000,000		622,000,000
Loans held-for-investment, in foreclosure	1,000,000		1,000,000
Residential Loans \| Jumbo Loans \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	866,331,000		866,331,000		$ 1,427,052,000
Residential Loans \| Jumbo Loans \| Held-for-sale residential loans \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	0		0		0
Residential Loans \| Jumbo Loans \| Held-for-sale residential loans \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	0		0		0
Residential Loans \| Jumbo Loans \| Redwood \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	$ 866,331,000		$ 866,331,000		$ 1,427,052,000
Residential Loans \| Financing Receivables, Equal to Greater than 90 Days Past Due
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans past due \| loan	1		1		1
Loans held-for-investment, delinquent greater than 90 days	$ 600,000		$ 600,000
Residential loans, at lower of cost or fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans \| loan			2		4
Loan Principal	200,000		$ 200,000		$ 1,000,000
Residential loans	100,000		100,000		1,000,000
Loans held-for-investment, delinquent greater than 90 days					$ 300,000
Number of loans in foreclosure \| loan					0
Residential loans, at lower of cost or fair value \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	113,000		113,000		$ 893,000
Residential loans, at lower of cost or fair value \| Held-for-sale residential loans \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	0		0		0
Residential loans, at lower of cost or fair value \| Held-for-sale residential loans \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	0		0		0
Residential loans, at lower of cost or fair value \| Redwood \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	$ 113,000		$ 113,000		$ 893,000
Residential loans, at lower of cost or fair value \| Financing Receivables, Equal to Greater than 90 Days Past Due
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans past due \| loan	0		0		1
Number of loans in foreclosure \| loan	0		0
Residential Loans Held For Investment at Fair Value \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Valuation adjustment gain (loss)	$ 4,000,000	4,000,000		24,000,000
Residential Loans Held For Investment at Fair Value \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Transfers from loans held-for-sale to loans held-for-investment	796,000,000
Residential Loans Held For Investment at Fair Value \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans \| loan			2,777		3,178
Loan Principal	581,000,000		$ 581,000,000		$ 698,000,000
Residential loans	554,000,000		554,000,000		633,000,000
Loans held-for-investment, delinquent greater than 90 days	16,000,000		16,000,000		$ 25,000,000
Weighted average original Fair Isaac Corporation (FICO) score					728
Weighted average original loan-to-value (LTV)					66.00%
Loans held-for-investment, in foreclosure	8,000,000		8,000,000		$ 10,000,000
Residential Loans Held For Investment at Fair Value \| Legacy Sequoia \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Valuation adjustment gain (loss)			$ 37,000,000
Residential Loans Held For Investment at Fair Value \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans \| loan			2,928		806
Loan Principal	2,160,000,000		$ 2,160,000,000		$ 605,000,000
Residential loans	$ 2,180,000,000		$ 2,180,000,000		$ 620,000,000
Number of loans past due \| loan	1		1		0
Loans held-for-investment, delinquent greater than 90 days	$ 980,000		$ 980,000
Number of loans in foreclosure \| loan	0		0		0
Weighted average original Fair Isaac Corporation (FICO) score					744
Weighted average original loan-to-value (LTV)					75.00%
Valuation adjustment gain (loss)	$ (13,000,000)		$ (25,000,000)
Residential Loans Held For Investment at Fair Value \| Sequoia Choice \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Transfers from loans held-for-investment to loans held-for-sale			$ 1,780,000,000
Residential Loans Held For Investment at Fair Value \| Redwood
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans \| loan			3,259		3,292
Loan Principal	$ 2,360,000,000		$ 2,360,000,000		$ 2,410,000,000
Residential loans					2,430,000,000
Number of loans in foreclosure \| loan	0		0
Gain (loss) on assets measured at fair value on a non-recurring basis	$ (17,000,000)	3,000,000	$ (71,000,000)	9,000,000
Transfers from loans held-for-sale to loans held-for-investment	116,000,000	78,000,000	204,000,000	$ 326,000,000
Transfers from loans held-for-investment to loans held-for-sale	$ 15,717,000	$ 98,000,000	$ 16,000,000
Weighted average original Fair Isaac Corporation (FICO) score	769		769
Weighted average original loan-to-value (LTV)	66.00%		66.00%
Percentage of fixed-rate loans	87.00%		87.00%
Residential Loans Held For Investment at Fair Value \| Redwood \| Originated Between 2013 and 2018
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of loan portfolio originated in year	96.00%		96.00%
Residential Loans Held For Investment at Fair Value \| Redwood \| Originated 2012 and prior years
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of loan portfolio originated in year	4.00%		4.00%
Residential Loans Held For Investment at Fair Value \| Redwood \| Hybrid or ARM Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Weighted average coupon rate	4.20%		4.20%
Residential Loans Held For Investment at Fair Value \| Jumbo Loans \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	$ 5,055,815,000		$ 5,055,815,000		3,687,265,000
Residential Loans Held For Investment at Fair Value \| Jumbo Loans \| Held-for-sale residential loans \| Legacy Sequoia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	553,958,000		553,958,000		632,817,000
Residential Loans Held For Investment at Fair Value \| Jumbo Loans \| Held-for-sale residential loans \| Sequoia Choice
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	2,181,195,000		2,181,195,000		620,062,000
Residential Loans Held For Investment at Fair Value \| Jumbo Loans \| Redwood \| Held-for-sale residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Residential loans	2,320,662,000		2,320,662,000		$ 2,434,386,000
Residential Loans Held For Investment at Fair Value \| Financing Receivables, Equal to Greater than 90 Days Past Due \| Redwood
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loan Principal	$ 1,000,000		$ 1,000,000
Number of loans past due \| loan	2		2		0
Number of loans in foreclosure \| loan					0
MSRs
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Mortgage servicing rights, at amortized cost	$ 2,530,000,000		$ 2,530,000,000