|
CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Allowance for doubtful accounts receivable, current | $ 55,015 | $ 54,531 |
| Preferred stock, par value | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 600,000,000 | 600,000,000 |
| Common stock shares issued | 172,363,259 | 172,104,720 |
| Common stock shares outstanding | 172,363,259 | 172,104,720 |