Goodwill, Net - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill And Intangible Assets Disclosure [Abstract]
Impairment of goodwill	$ 0	$ 0	$ 0
Accumulated Impairment of goodwill	$ 40,045	$ 40,045	$ 40,045