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Lease Agreements - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Leases [Abstract]      
Base rent (including straight-line rent) $ 168,303 $ 164,599 $ 159,898
Expense recoveries 32,911 32,132 30,949
Percentage rent $ 1,608 $ 1,492 $ 1,575