Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Detail)

v3.8.0.1
Debt - Additional Information (Detail)
£ in Millions
1 Months Ended 8 Months Ended 12 Months Ended
Oct. 27, 2017
USD ($)
Aug. 25, 2017
USD ($)
Dec. 31, 2016
Jan. 31, 2017
USD ($)
Feb. 29, 2016
USD ($)
Aug. 24, 2017
Oct. 29, 2017
USD ($)
Oct. 30, 2016
USD ($)
Oct. 29, 2017
GBP (£)
Mar. 31, 2017
USD ($)
Feb. 28, 2017
USD ($)
Extinguishment of Debt [Line Items]                      
Approximate weekly employee compensation, payroll taxes and payments to vendors             $ 20,000,000        
Current debt outstanding             50,000,000 $ 2,050,000      
Long-term debt, excluding current portion             0 $ 95,000,000      
Line of Credit                      
Extinguishment of Debt [Line Items]                      
Current debt outstanding       $ 50,000,000              
Current borrowing capacity       $ 160,000,000.0     132,400,000   £ 20.0    
Unbilled receivable percent     15.00% 10.00%              
Cash collateral for borrowed securities   $ 5,000,000               $ 25,000,000.0 $ 20,000,000.0
Minimum block on borrowing base availability   $ 10,000,000.0         35,000,000        
Repayments of debt $ 25,000,000                    
Fee percentage   1.80%       1.20%          
Maximum permitted delinquent receivables, percent           2.00%          
Borrowing capacity of facility             $ 250,000,000.0        
Interest rate during period             3.10% 2.30%      
Available borrowing capacity of facility             $ 19,100,000        
Increase (decrease) in borrowing availability   $ 35,000,000.0                  
Letter of Credit                      
Extinguishment of Debt [Line Items]                      
Credit facility debt outstanding             28,300,000        
Current borrowing capacity             50,000,000        
Letter of Credit | Short Term Financing Program                      
Extinguishment of Debt [Line Items]                      
Credit facility debt outstanding             26,900,000        
Letter of Credit, Security Deposit                      
Extinguishment of Debt [Line Items]                      
Credit facility debt outstanding             $ 1,400,000        
Maintech, Incorporated | Revolving Credit Facility                      
Extinguishment of Debt [Line Items]                      
Current borrowing capacity         $ 10,000,000            
Debt instrument term         364 days            
Maintech, Incorporated | Letter of Credit                      
Extinguishment of Debt [Line Items]                      
Portion secured by parent         $ 3,000,000.0            
Sale of Maintech or Receipt of IRS Refund | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Cash collateral for borrowed securities, contingent maximum                   $ 25,000,000.0  
Cash collateral for borrowed securities       $ 25,000,000              
Minimum | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Target liquidity ratio             1.5        
Maximum | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Target liquidity ratio             2.0        
Supply chain finance receivable             $ 5,000,000        
Debt Covenant Period One | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Maximum permitted delinquent receivables, percent   2.50%                  
Debt Covenant Period Two | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Maximum permitted delinquent receivables, percent   2.25%                  
Debt Covenant Period Three | Line of Credit                      
Extinguishment of Debt [Line Items]                      
Maximum permitted delinquent receivables, percent   2.00%