Related Party Transactions - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Capital Leased Assets [Line Items]
Rental expense for the leases	$ 82	$ 82	$ 165	$ 165
Paulin [Member]
Capital Leased Assets [Line Items]
Rental expense for the leases	$ 190	$ 201	$ 376	$ 293
Number of leases			3
Number of properties leased			5
Lease agreement date			Feb. 19, 2013