Employee Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation And Retirement Disclosure [Abstract]
Percentage of employee's contribution to the plan up to 6% of base salary matched by the Company	100.00%
Employer's contribution percentage	6.00%
Employer's contribution	$ 1.8	$ 1.6	$ 1.6