Related Party Transactions - Schedule of Condensed Combined Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Related Party Transactions [Abstract]
Allocated operating expenses	$ 4.0	$ 5.0
Insurance expense	5.0	4.0
Other	5.0	5.0
Operations and maintenance – related parties	14.0	14.0
Allocated general corporate expenses	7.0	6.0
Management Agreement fee	2.0	2.0
Omnibus Agreement fee	3.0	3.0
General and administrative – related parties	$ 12.0	$ 11.0