Partners' Equity - Narrative (Details) - USD ($)		3 Months Ended
	May 12, 2017	Mar. 31, 2020
Distribution Made to Limited Partner [Line Items]
Limited partners' capital account, required quarterly distribution period		60 days
Common units available for issuance through ATM Program		$ 197,000,000
ATM Program
Distribution Made to Limited Partner [Line Items]
Aggregate offering price	$ 200,000,000