Equity (Details)	3 Months Ended		46 Months Ended
	Mar. 31, 2020 USD ($) offering shares	Mar. 31, 2019 USD ($) shares	Mar. 31, 2020 USD ($) offering shares
Limited Partners' Capital Account [Line Items]
Number of common units issued in public offering (in shares) | shares	40,570	622,032
At The Market Offering Program
Limited Partners' Capital Account [Line Items]
Aggregate authorized amount	$ 750,000,000
Common Units | At The Market Offering Program
Limited Partners' Capital Account [Line Items]
Number of continuous offerings | offering	3		3
Authorized amount per program	$ 250,000,000
Number of common units issued in public offering (in shares) | shares	40,570	622,032	9,487,055
Issuance of common units	$ 2,000,000	$ 32,000,000	$ 494,000,000
Brokers commissions			5,000,000
Other costs			$ 3,000,000