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Lease Agreements - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Leases [Abstract]      
Base rent (including straight-line rent) $ 172,381 $ 168,303 $ 164,599
Expense recoveries 34,269 32,911 32,132
Percentage rent $ 1,379 $ 1,608 $ 1,492