Deferred Costs and Other Intangibles, Net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Amortization expense related to deferred leasing costs, in-place leases, trademark and database	$ 2.4	$ 2.5	$ 4.9	$ 4.7
Amortization of deferred financing costs	$ 0.5	$ 0.5	$ 1.0	$ 1.0