|
Fair Value Measurements (Details) (6.75% Notes, USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
|
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|---|
| Liabilities: | |||
| Debt instrument, stated interest rate | 6.75% | ||
| Fair Value, Inputs, Level 1 | |||
| Liabilities: | |||
| Long term debt, Carrying Amount | $ 741,722 | $ 742,017 | |
| Long term debt, Fair Value | $ 773,588 | $ 751,538 |