Revenue (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 142,020	$ 116,628	$ 274,753	$ 233,830
Rental property revenues
Disaggregation of Revenue [Line Items]
Variable rental revenue	35,800		68,900
Revenues	134,933	114,337	258,798	228,045
Fees and other
Disaggregation of Revenue [Line Items]
Revenues	$ 7,100	$ 2,300	$ 16,000	$ 5,800