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Commercial Loans - Summary of Classifications and Carrying Value of Commercial Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans receivable, fair value | $ 30,400 | $ 402,647
Commercial Loans, Held-for-sale |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, at lower of cost or fair value | 0 | 39,141
Loans receivable, fair value | 0 | 39,141
Commercial Loans at Lower of Cost or Market |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, at lower of cost or fair value | 30,400 | 0
Commercial Loans Held-for-Investment, at Fair Value |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans receivable, fair value | 0 | 67,657
Commercial Loans Held-for-Investment, at Amortized Cost |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans receivable, fair value | $ 0 | $ 295,849

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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 + Details
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