Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Aug. 17, 2020	Jul. 08, 2020	Jul. 05, 2020	May 15, 2020	Apr. 09, 2020	Feb. 18, 2020	Jan. 10, 2020
Subsequent Event [Line Items]
Dividend declared (in dollars per share)					$ 0.40625		$ 0.40625
Dividend paid (in dollars per share)				$ 0.40625		$ 0.40625
Subsequent event
Subsequent Event [Line Items]
Dividend declared (in dollars per share)		$ 0.40625
Subsequent event | 206 East 9th Street | Mortgage notes
Subsequent Event [Line Items]
Debt repaid, at par			$ 25.1
Scenario, Forecast | Subsequent event
Subsequent Event [Line Items]
Dividend paid (in dollars per share)	$ 0.40625