Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Effective Income Tax Rate (as a percent)	39.00%	38.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate (as a percent)	34.00%	34.00%
Unrecognized Tax Benefits (in Dollars)	$ 42