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Deferred Costs
12 Months Ended
Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deferred Costs
Deferred Costs
Deferred costs at December 31, 2016 and 2015 consisted of the following (in thousands):
 
December 31,
 
2016
 
2015
Deferred leasing costs
$
468,971

 
$
415,406

Less: accumulated amortization
(201,371
)
 
(175,486
)
Deferred costs, net
$
267,600

 
$
239,920