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Acquisition (Details 3) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Business acquisitions |  |  |  |
Revenue of CRI from the date of acquisition |  |  | $ 13,300,000 |
Operating losses of CRI from the date of acquisition |  |  | 7,600,000 |
Unaudited pro forma financial information |  |  |  |
Revenue | 100,263,000 | 32,700,000 | 233,598,000 | 240,013,000
Net income (loss) | $ 4,708,000 | $ (26,966,000) | $ (46,627,000) | $ 85,873,000
Net income (loss) per share - diluted (in dollars per share) | $ 0.04 | $ (0.23) | $ (0.41) | $ 0.69

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