|
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Consolidated Balance Sheets [Abstract] | ||
| Allowance for doubtful accounts receivable | $ 2,948 | $ 2,697 |
| Common stock, par value per share | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 190,000,000 | 190,000,000 |
| Common stock, shares outstanding | 87,821,885 | 87,799,479 |