Annual report pursuant to Section 13 and 15(d)

Concentration of Credit Risks - Additional Information (Detail)

v3.7.0.1
Concentration of Credit Risks - Additional Information (Detail) - Customer
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Concentration Risk [Line Items]    
Sales percentage by customer percentage maximum (no more than) 5.00%  
Successor    
Concentration Risk [Line Items]    
Number of major customers 3  
Purchase major vendor percentage 4.30% 6.30%
Trade payable major vendor percentage 3.20% 4.00%
Successor | Accounts Receivable    
Concentration Risk [Line Items]    
Major customer, accounted percentage 34.30123%  
Predecessor    
Concentration Risk [Line Items]    
Number of major customers   3
Predecessor | Accounts Receivable    
Concentration Risk [Line Items]    
Major customer, accounted percentage   37.10%
Predecessor | Total Revenues    
Concentration Risk [Line Items]    
Major customer, accounted percentage 46.07907% 44.30%
Customer Concentration Risk | Total Revenues | United States, Excluding All Points    
Concentration Risk [Line Items]    
Number of separate customers 2  
Customer Concentration Risk | Total Revenues | Minimum    
Concentration Risk [Line Items]    
Major customer, accounted percentage 10.00%