|
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Condensed Consolidated Balance Sheets | ||
| Trade accounts receivable, allowances (in dollars) | $ 9,275 | $ 21,692 |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, authorized shares | 125,000 | 125,000 |
| Common stock, issued shares | 37,051 | 38,692 |
| Common stock, outstanding shares | 37,051 | 38,692 |