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Income Taxes - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2015 USD ($)
Income Tax Disclosure [Abstract]
Additional valuation allowance	$ 0

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- References

No definition available.

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 45



-Paragraph 20



-URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318

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