Related Party Transactions - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Jun. 26, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Interest expense, related party		$ 0.0	$ 3.7
Ascension and TowerBrook
Related Party Transaction [Line Items]
Long-term debt, related party				$ 0.0
Repayment of subordinated notes, prepayment penalty amount	$ 2.2