Capital Accounts, Distributions (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	6 Months Ended		12 Months Ended
	Aug. 12, 2021	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2021
Distributions to Partners [Abstract]
Cash payments made in connection with DERs			$ 15.2	$ 12.9
Forecast [Member] | Second Quarter 2021 Distribution [Member]
Distributions to Partners [Abstract]
Cash distributions paid	$ 991.4
Cash payments made in connection with DERs	$ 8.0
Cash Distribution [Member] | Second Quarter 2021 Distribution [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)		$ 0.45
Cash Distribution [Member] | Forecast [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)					$ 1.80