Stockholders' Equity / Partners' Capital (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Number of shares in deferred compensation plan (in shares)	91,746	77,928
ATM Equity Program
Schedule of Equity Method Investments [Line Items]
ATM equity program, aggregate offering price authorized (up to $500 million)	$ 500,000,000
Non-Qualified Deferred Compensation Plan | Treasury Stock
Schedule of Equity Method Investments [Line Items]
Number of shares deposited into the deferred compensation plan (in shares)	21,537
Number of shares withdrawn from deferred compensation plan (in shares)	7,719