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Deferred Costs
6 Months Ended
Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deferred Costs Deferred Costs
Deferred costs at June 30, 2019 and December 31, 2018 consisted of the following (in thousands):
 
June 30, 2019
 
December 31, 2018
Deferred leasing costs
$
481,204

 
$
453,833

Less: accumulated amortization
(260,632
)
 
(244,723
)
Deferred costs, net
$
220,572

 
$
209,110