Intangible and Other Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Intangible Assets Disclosure [Line Items]
Amortization expense for intangible assets	$ 1,235	$ 1,313	$ 1,173
Estimated amortization expense for intangible assets for year one	915
Estimated amortization expense for intangible assets for year two	638
Estimated amortization expense for intangible assets for year three	565
Estimated amortization expense for intangible assets for year four	279
Estimated amortization expense for intangible assets for year five	17
Trademark
Schedule of Intangible Assets Disclosure [Line Items]
Impairment of trademark	$ 833