Supplemental Financial Information - Additional Information (Detail) - Issuer |
Oct. 29, 2016 |
Mar. 15, 2013 |
Sep. 20, 2012 |
Mar. 12, 2012 |
Feb. 28, 2012 |
|---|---|---|---|---|---|
| Debt Instrument [Line Items] | |||||
| Percentage of ownership of domestic subsidiaries | 100.00% | ||||
| 2012 Notes | |||||
| Debt Instrument [Line Items] | |||||
| Long-term Debt, interest rate | 9.00% | 9.00% | 9.00% | ||
| 2013 Notes | |||||
| Debt Instrument [Line Items] | |||||
| Long-term Debt, interest rate | 6.125% |