|
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
|
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 5,000,000 | 5,000,000 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 75,000,000 | 75,000,000 |
| Common stock, shares issued | 41,485,000 | 41,181,000 |
| Common stock, shares outstanding | 41,485,000 | 41,181,000 |