Debt - Debt Open Market Repurchases (Details) - Second Lien Notes - Secured Debt - USD ($) $ in Millions		6 Months Ended
	Apr. 18, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Aggregate principal amount of debt repurchased		$ 42.3
Debt repurchase amount	$ 173.7	48.1
Gain (loss) on repurchase of debt instrument	$ (25.7)	$ (4.6)