Non-Lease Revenues (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Asset and property management fee income	$ 4,300,000	$ 1,900,000
Leasing override fee income	14,600	3,000
Construction and development fees	800,000
Salary and other reimbursement revenue	3,100,000	1,100,000
Miscellaneous revenue	$ 7,100	$ 176,500