Employee Benefit Plans - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2016 USD ($) Age
Defined Contribution Plan Disclosure [Line Items]
Minimum age of full-time employees | Age	21
Conditional age-1 for availing plan | Age	55
Conditional age-2 for availing plan | Age	65
Conditional years of service -1 for availing plan	10 years
Conditional years of service-2 for availing plan	5 years
Pension Plan, Defined Benefit
Defined Contribution Plan Disclosure [Line Items]
Expected employer contribution | $	$ 0
Other Postretirement Benefit Plan, Defined Benefit
Defined Contribution Plan Disclosure [Line Items]
Expected employer contribution | $	5,000
Employer contribution | $	$ 2,000