Net Income (Loss) Per Share - Computation Earnings Per Share, Basic and Diluted (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2012
Jun. 30, 2011
Jun. 30, 2011
Sep. 30, 2012
Numerator        
Net income (loss) $ 3,175 $ (4,145) $ (12,098) $ 1,427
Cumulative preferred stock dividends 0 0 (2,477) 0
Net income (loss) attributable to common stockholders $ 3,175 $ (4,145) $ (14,575) $ 1,427
Denominator        
Weighted average common shares outstanding 85,458 84,348 77,465 84,430
Weighted average unvested restricted stock awards (276) (414) (464) (410)
Weighted average common shares outstanding - basic 85,182 83,934 77,001 84,020
Dilutive effect of stock options, warrants and convertible preferred stock 3,569 0 0 2,875
Weighted average common shares outstanding - diluted 88,751 83,934 77,001 86,895
Net income (loss) per share - basic (usd per share) $ 0.04 $ (0.05) $ (0.19) $ 0.02
Net income (loss) per share - diluted (usd per share) $ 0.04 $ (0.05) $ (0.19) $ 0.02