Financing Receivables - Summary of Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended
Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan
Receivables [Abstract]
Financing receivable, modifications, number of contracts (loan) \| loan	355	559
Financing receivable, modifications, pre-modification recorded investment	$ 1,838	$ 8,615
Financing receivable, modifications, post-modification recorded investment	$ 1,655	$ 5,986
Financing receivable, modifications, subsequent default, number of contracts (loan) \| loan	156	355
Financing receivable, modifications, subsequent default, recorded investment	$ 721	$ 1,089

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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- References

No definition available.

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