Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Additional Information (Detail)

v2.4.0.8
Related Party Transactions - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Related Party Transaction [Line Items]      
Transaction fees paid to subsidiary $ 77 $ 155 $ 110
Rental expense for the leases 311 311 311
Paulin [Member]
     
Related Party Transaction [Line Items]      
Rental expense for the leases $ 687    
Number of leases 3    
Number of properties leased 5    
Lease agreement date Feb. 19, 2013