Stockholders' and Members' Equity, Investor Voting Warrants (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
	Oct. 28, 2016	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2020
Investor Voting Warrants [Abstract]
Warrant liability		$ 0.0		$ 0.0
Recognized (income) expense		$ 0.0	$ (0.8)
Goldman and Beekman [Member]
Investor Voting Warrants [Abstract]
Number of shares issued (in shares)				2,148,806
Investor Voting Warrants [Member]
Investor Voting Warrants [Abstract]
Common unit warrants issued (in shares)	25,000
Common unit warrants in exchange price	$ 1.0
Common unit warrants term (in years)	10 years
Common units redemption term	5 years