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Income Taxes - Additional Information (Detail)
3 Months Ended
Mar. 31, 2016
USD ($)
Income Tax Examination [Line Items]  
Gross liability for tax positions $ 169,000
Tax positions that will be resolved within the next twelve months $ 72,000
Income tax examination years description The Company is no longer subject to U.S. Federal income tax examinations for the years prior to 2013.
Domestic | Minimum  
Income Tax Examination [Line Items]  
Income tax examination year 2012
Domestic | Maximum  
Income Tax Examination [Line Items]  
Income tax examination year 2015