|
Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Current assets: | ||
| Allowance for doubtful accounts | $ 2.0 | $ 2.4 |
| Stockholders' equity: | ||
| Common Stock, par or stated value per share (in dollars per share) | $ 0.01 | $ 0.01 |
| Common Stock, shares authorized (in shares) | 200,000,000 | 200,000,000 |
| Common Stock, shares issued (in shares) | 35,367,264 | 35,367,264 |
| Treasury stock, shares (in shares) | 2,257,860 | 2,344,060 |