Property and Equipment, Net - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 6,400,000	$ 5,600,000	$ 5,300,000
Expected rental income, during 2014	834,000
Expected rental income, during 2015	685,000
Expected rental income, during 2016	319,000
Expected rental income, during 2017	46,000
Rental income associated with third party tenants	$ 704,000	$ 586,000	$ 1,200,000
Maximum [Member]
Property, Plant and Equipment [Line Items]
Lease expiration	Dec. 31, 2014
Minimum [Member]
Property, Plant and Equipment [Line Items]
Lease expiration	Dec. 31, 2017