Goodwill and Other Intangible Assets - Schedule of Activity in Goodwill and Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 09, 2011
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets, net	$ 48,711	$ 52,096	$ 52,977
Acquisition	356	560	3,068	2,900
Amortization expense	(4,434)	(3,945)	(3,949)
Intangible assets, net	44,633	48,711	52,096
Goodwill	5,260	4,795	4,795
Acquisition		465
Goodwill	$ 5,260	$ 5,260	$ 4,795