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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 loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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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

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