Financial Instruments and Fair Value Measurements - Fair Values of Financial Instruments Not Measured at Fair Value in Consolidated Balance Sheets (Details) - 6.875% senior secured notes due November 1, 2027 - Senior Notes - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021	Oct. 29, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate (in percent)	6.875%		6.875%
Carrying amount of long-term debt	$ 479.0	$ 478.1
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term debt	$ 381.9	$ 527.0