Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Summary of Long-term Debt Obligations - Additional Information (Detail)

v3.10.0.1
Long-Term Debt - Summary of Long-term Debt Obligations - Additional Information (Detail) - USD ($)
9 Months Ended
May 19, 2017
Sep. 30, 2018
May 04, 2018
Apr. 10, 2018
Apr. 09, 2018
Shares Issued And Outstanding [Line Items]          
Debt instrument, face amount   $ 245,000,000      
Debt instrument, interest rate, stated percentage   4.58%      
Asset-Based Revolving Credit Facility [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, face amount $ 30,000,000        
Minimum [Member] | Asset-Based Revolving Credit Facility [Member]          
Shares Issued And Outstanding [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage 0.25% 0.25%      
Minimum [Member] | Asset-Based Revolving Credit Facility [Member] | Base Rate [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 0.50%        
Minimum [Member] | Asset-Based Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 1.50%        
Maximum [Member] | Asset-Based Revolving Credit Facility [Member]          
Shares Issued And Outstanding [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage 0.375% 0.375%      
Maximum [Member] | Asset-Based Revolving Credit Facility [Member] | Base Rate [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 1.00%        
Maximum [Member] | Asset-Based Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 2.00%        
Senior Secured Debt [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, interest rate, stated percentage 6.75% 6.75% 6.75% 6.75% 6.75%
Asset-Based Revolving Credit Facility [Member]          
Shares Issued And Outstanding [Line Items]          
Line of credit, current   $ 10,200,000      
Debt instrument, face amount $ 30,000,000        
Asset-Based Revolving Credit Facility [Member] | Minimum [Member]          
Shares Issued And Outstanding [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage 0.25%        
Asset-Based Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 0.50% 0.50%      
Asset-Based Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 1.50% 1.50%      
Asset-Based Revolving Credit Facility [Member] | Maximum [Member]          
Shares Issued And Outstanding [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage 0.375%        
Asset-Based Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 1.00% 1.00%      
Asset-Based Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Shares Issued And Outstanding [Line Items]          
Debt instrument, basis spread on variable rate 2.00% 2.00%