Convertible and Long-term Debt Obligations - Term Loan - Additional Information (Detail) - Non-recourse debt [Member] - USD ($)	1 Months Ended	3 Months Ended
Jan. 31, 2016	Mar. 31, 2017
March 2016, Agreement [Member] \| Term Loan due in December 2018 [Member]
Debt Instrument [Line Items]
Line of credit, additional interest rate		3.25%
Percentage of fee for undrawn commitments		0.85%
January 2016, Agreement [Member] \| Term Loan due in January 2021 [Member]
Debt Instrument [Line Items]
Repayment of notes principal amount		$ 2,300
January 2016, Agreement [Member] \| Term Loan due in January 2021 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Line of credit, additional interest rate	3.50%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- 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.

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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- Details

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