Deferred Costs, Acquired Lease Intangibles and Goodwill - Schedule of Deferred Costs, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs [Line Items]
Leasing costs	$ 199,033	$ 178,120
Total deferred costs, gross amount	448,542	444,806
Less: accumulated amortization	(224,598)	(209,839)
Total deferred costs, net, excluding net deferred financing costs	223,944	234,967
Acquired in-place lease value and deferred leasing costs
Deferred Costs [Line Items]
Acquired finite-lived intangible assets, gross	200,296	214,550
Acquired above-market leases
Deferred Costs [Line Items]
Acquired finite-lived intangible assets, gross	$ 49,213	$ 52,136