XML 64 R50.htm IDEA: XBRL DOCUMENT v3.8.0.1
Long-Term Debt and Other Liabilities - Summary of Redemption Prices Plus Accrued and Unpaid Interest (Detail) - 12.500% Senior Secured Notes Due 2022 [Member]
9 Months Ended
Sep. 30, 2017
2019 [Member]  
Debt Instrument, Redemption [Line Items]  
Debt instrument redemption price, percentage 106.25%
2020 [Member]  
Debt Instrument, Redemption [Line Items]  
Debt instrument redemption price, percentage 103.125%
2021 and Thereafter [Member]  
Debt Instrument, Redemption [Line Items]  
Debt instrument redemption price, percentage 100.00%