Income Taxes - Schedule of Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Current:
Federal	$ 4,994	$ 4,241
State and local	1,186	1,088
Foreign	(267)	(127)
Total current provision	5,913	5,202
Deferred:
Federal	3,331	3,235
State and local	511	586
Foreign	478	103
Total deferred provision	4,320	3,924
Provision for income taxes	$ 10,233	$ 9,126