Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Long-Term Debt (Parenthetical) (Detail)

v3.21.2
Long-Term Debt - Long-Term Debt (Parenthetical) (Detail)
$ in Millions
Sep. 30, 2021
USD ($)
Asset Based Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Debt instrument, face amount $ 24.6
Outstanding borrowings 0.0
Outstanding borrowing base availability 24.3
7.125% Senior Secured Notes [Member]  
Debt Instrument [Line Items]  
Debt instrument, face amount $ 114.7
7.125% Senior Secured Notes [Member] | Debt Issuance Costs [Member]  
Debt Instrument [Line Items]  
Imputed interest rate percentage 7.64%
6.75% Senior Secured Notes [Member]  
Debt Instrument [Line Items]  
Debt instrument, face amount $ 98.8
6.75% Senior Secured Notes [Member] | Debt Issuance Costs [Member]  
Debt Instrument [Line Items]  
Imputed interest rate percentage 7.10%
Letter of Credit [Member] | Asset Based Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Outstanding borrowings $ 0.3