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Deferred Costs
9 Months Ended
Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deferred Costs
Deferred Costs
Deferred costs at September 30, 2017 and December 31, 2016 consisted of the following (in thousands):
 
September 30, 2017
 
December 31, 2016
Deferred leasing costs
$
464,788

 
$
468,971

Less: accumulated amortization
(216,807
)
 
(201,371
)
Deferred costs, net
$
247,981

 
$
267,600