Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate	37.00%	36.00%
Deferred income tax asset, net	$ 95,363,000		$ 105,316,000
Valuation allowance	0		0
Operating loss carryforwards	104,900,000		107,700,000
Amount of annual commutative limitation	10,900,000
Unrecognized tax benefits	0		0
Uncertain tax positions	$ 0		$ 0