|
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) 10Q (USD $)
In Millions, except Share data, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Statement Of Financial Position [Abstract] | ||
| Property and equipment, accumulated depreciation | $ 323.1 | $ 312.0 |
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 1,000,000 | 1,000,000 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 200,000,000 | 200,000,000 |
| Common stock, shares issued | 106,900,000 | 106,700,000 |
| Treasury stock | 700,000 | 700,000 |