Fair Value of Financial Instruments - Summary of Change in Estimated Fair Value of Company's Level 3 Financial Instrument (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning		$ 24,525
Fair value of private placement warrants exercised		(7,320)
Change in the value of contingent consideration	900
Change in the value of private placement warrants		(332)	9,053
Balance ending	16,873	16,873
Level 3 [Member] \| Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning		8,900
Change in the value of contingent consideration		(900)
Balance ending	$ 8,000	$ 8,000

Fair Value Measurement With Unobservable Inputs Change In Warrant Liability Due To Exercise Of Private Placement Warrants

No definition available.

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- Definition

Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Change In Fair Value Of Contingent Consideration

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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