|
Fair Value Measurements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
|---|---|
|
Mar. 31, 2015
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |
| Senior notes, face amount | $ 200.0 |
| Debt instrument interest rate | 7.875% |
| Debt instrument due year | 2020 |
| Senior Notes 7.875 Percent Due 2020 | |
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |
| Senior notes fair value basis for measurement, description | The fair value of the Company's $200.0 million aggregate principal amount of 7.875% senior notes due 2020 (the "2020 Notes" or the "Senior Notes") is based on their latest sales price at the end of each period obtained from a third-party institution and is considered Level 2 in the fair value hierarchy, as there is not an active market for these notes. |