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Distressed Residential Mortgage Loans, Net - Distressed Residential Mortgage Loans (Details) - Distressed residential mortgage loans $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Contractually required principal and interest	$ 76,529
Nonaccretable yield	(6,467)
Expected cash flows to be collected	70,062
Accretable yield	(58,767)
Fair value at the date of acquisition	$ 11,295

X

- 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

Change in the estimate of cash flows expected to be collected, after acquisition of a loan, which results in a decrease in accretable yield (for example, as a result of an other-than-temporary impairment). This relates to loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

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Fair value at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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-Publisher FASB
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Amount of cash flows expected to be collected at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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Amount of contractually required payments receivable at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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-Publisher FASB
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-Topic 310
-SubTopic 30
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The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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