Income Taxes - Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of Federal tax effect	6.10%	3.20%	4.10%
Non-deductible goodwill impairment	0.00%	0.00%	4.30%
Non-deductible compensation	0.00%	1.10%	0.00%
Non-deductible meals and entertainment	0.70%	1.10%	5.20%
Other	(1.50%)	(1.70%)	3.00%
Effective tax rate	40.30%	38.70%	51.60%