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Mortgage Loans Held for Investment, Net and Related Non-Recourse Collateralized Financing (Notes) | 12 Months Ended
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Dec. 31, 2015
Mortgage Loans Held for Investment, Net and Related Non-Recourse Collateralized Financing [Abstract] |
Mortgage loans held for investment, net and related non-recourse collateralized financing | MORTGAGE LOANS HELD FOR INVESTMENT, NET AND RELATED NON-RECOURSE COLLATERALIZED FINANCING The Company's mortgage loans held for investment, net consist of securitized and unsecuritized mortgage loans originated or purchased by the Company from 1992 through 1998 and are reported at amortized cost. The following table provides detail by type of collateral as of the periods indicated:
| December 31, 2015 |  | December 31, 2014
Single-family mortgage loans held for investment, amortized cost | $ | 24,189 |  |  | $ | 30,214 |
Commercial mortgage loans held for investment, amortized cost | 148 |  |  | 9,736 |
Allowance for loan losses | (192 | ) |  | (250 | )
Total mortgage loans held for investment, net | $ | 24,145 |  |  | $ | 39,700 |
Commercial securitized mortgage loans are evaluated individually for impairment when the debt service coverage ratio on the mortgage loan is less than 1:1 or when the mortgage loan is delinquent. Commercial mortgage loans not evaluated for individual impairment are evaluated for a general allowance. There were no securitized commercial mortgage loans identified as seriously delinquent (60 or more days past due) on the Company's consolidated balance sheets as of December 31, 2015 or as of December 31, 2014. Single-family mortgage loans are considered homogeneous and are evaluated on a pool basis for a general allowance. The unpaid principal balance of the Company's securitized single-family mortgage loans identified as seriously delinquent as of December 31, 2015 was $1,343 compared to $2,221 as of December 31, 2014. The Company continues to accrue interest on its seriously delinquent securitized single-family mortgage loans because the primary servicer continues to advance the interest and/or principal due on the loan. The Company considers various factors in determining its specific and general allowance requirements, including whether a loan is delinquent, the Company’s historical experience with similar types of loans, historical cure rates of delinquent loans, and historical and anticipated loss severity of the mortgage loans as they are liquidated. The factors may differ by mortgage loan type (e.g., single-family versus commercial) and collateral type (e.g., multifamily versus office property). The allowance for loan losses is evaluated and adjusted periodically by management based on the actual and estimated timing and amount of probable credit losses, using the above factors, as well as industry loss experience. The Company recorded $180, $0, and $261 as provision for loan losses for the years ended December 31, 2015, 2014, and 2013, respectively, which is included within "other (expense) income, net" on the Company's consolidated statements of comprehensive income (loss). The majority of the Company's mortgage loans held for investment, net are securitized mortgage loans and are pledged as collateral for the one remaining class of the Company's single-family securitization financing bond, which is recorded on the Company's balance sheet as "non-recourse collateralized financing". As of December 31, 2015, $9,220 of the principal balance of the single-family mortgage loans held for investment was pledged as collateral for the Company's non-recourse collateralized financing which had a remaining principal balance of $8,573. As of December 31, 2014, $11,902 of the principal balance of the Company's mortgage loans held for investment was pledged as collateral for the remaining principal balance of the outstanding bonds of $10,967. The interest rate on this bond is based on 1-month LIBOR plus 0.30%.

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- Definition Mortgage Loans Held for Investment, Net and Related Non-Recourse Collateralized Financing [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107207-111719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56950315&loc=d3e122596-111746 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=56950315&loc=d3e122739-111746 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=56950315&loc=d3e122625-111746 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7519067&loc=SL6226446-111709 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107314-111719 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7519067&loc=SL6226443-111709 + Details
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