|
Financing - Summary of Debt (Parenthetical) (Detail)
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Dec. 31, 2014
|
|
| 5.00% Senior Notes Due 2021 [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jun. 15, 2021 | |
| Interest rate | 5.00% | 5.00% |
| 5.50% Senior Notes Due 2024 [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jun. 15, 2024 | |
| Interest rate | 5.50% | 5.50% |
| Senior Secured Term Loans Due 2017, at Par [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jan. 21, 2017 | |
| Senior Secured Term Loans Due 2018, at Par [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jan. 14, 2018 | |
| Senior PIK Toggle Notes Due 2020 [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jun. 01, 2020 | |
| Senior Secured Revolving Credit Facility [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date | Jan. 14, 2017 |