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Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Estimated fair value of total debt	$ 139,700	$ 73,100
Total debt	$ 139,374	$ 68,972

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- References

No definition available.

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- Definition

Amount of long-term debt and capital lease obligations including current maturities.

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No definition available.

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Name:	us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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Name:	us-gaap_LongTermDebtFairValue
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