Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Detail)

v3.19.1
Debt - Additional Information (Detail) - USD ($)
 12 Months Ended
Oct. 30, 2018
Dec. 31, 2018
Feb. 14, 2018
Feb. 13, 2018
Jan. 26, 2015
Jan. 22, 2014
Jul. 30, 2013
Debt Instrument [Line Items]              
Cash collateral paid in support of letters of credit outstanding   $ 9,800,000          
2015 Secured Credit Agreement              
Debt Instrument [Line Items]              
Unamortized debt issuance expense   $ 1,208,000          
Maximum borrowing capacity     $ 80,000,000.0 $ 100,000,000.0 $ 200,000,000.0    
Debt covenants, minimum liquidity amount     30,000,000.0        
Debt covenants, minimum liquidity amount, restricted amount     15,000,000.0        
Borrowing capacity net of restricted liability amount and outstanding letters of credit     $ 65,000,000.0        
Cash collateral paid in support of letters of credit outstanding $ 10,000,000.0            
6.75% Senior Notes, due July 2022              
Debt Instrument [Line Items]              
Debt instrument fixed interest rate   6.75%       6.75%  
Liabilities subject to compromise, long-term debt   $ 360,000,000.0          
Aggregate principal amount           $ 360,000,000.0  
Debt issuance costs   7,600,000          
Unamortized debt issuance expense   $ 3,775,000          
Redemption price, percent after year three   103.40%          
Redemption price, percent after year five           101.00%  
7.50% Notes              
Debt Instrument [Line Items]              
Debt instrument fixed interest rate   7.50%         7.50%
Liabilities subject to compromise, long-term debt   $ 225,000,000.0          
Aggregate principal amount             $ 225,000,000.0
Debt issuance costs   5,600,000          
Unamortized debt issuance expense   $ 1,580,000          
Redemption price, percent after year five             101.00%