Net Income Per Common Share | 9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2011 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Income Per Common Share | Net Income Per Common Share: The following table sets forth the computation of basic and diluted net income per common share for the periods indicated (in thousands, except share and per share data):
In accordance with ASC 260 (Topic 260, “Earnings Per Share”), unvested share-based payment awards that contain rights to receive non-forfeitable dividends or dividend equivalents, whether paid or unpaid, are considered a “participating security” for purposes of computing earnings or loss per common share and the two-class method of computing earnings per share is required for all periods presented. During the three and nine months ended September 30, 2011 and 2010, the Company issued restricted stock awards. Unvested shares of restricted stock are participating securities such that they have rights to receive non-forfeitable dividends. In accordance with ASC 260, the unvested restricted stock was considered a “participating security” for purposes of computing earnings per common share and was therefore included in the computation of basic and diluted earnings per common share. Under certain of the Company's restricted stock award agreements, unvested shares of restricted stock have rights to receive non-forfeitable dividends. For the three and nine months ended September 30, 2011 and 2010, the Company has calculated diluted earnings per share under both the treasury stock method and the two-class method. There was not a significant difference in the per share amounts calculated under the two methods, and the two-class method is disclosed. For the three and nine months ended September 30, 2011, approximately 3.4 million of restricted common shares issued to employees have been excluded from the computation of basic net income per common share since the shares are not vested and remain subject to forfeiture. For the three and nine months ended September 30, 2010, approximately 2.7 million of restricted common shares issued to employees have been excluded from the computation of basic net income per common share since the shares are not vested and remain subject to forfeiture. For the three months ended September 30, 2011 and 2010, 18.5 million and 22.3 million, respectively, of stock options were excluded from the calculation of diluted net income per common share since the effect was anti-dilutive. For the nine months ended September 30, 2011 and 2010, 17.8 million and 25.2 million, respectively, of stock options were excluded from the calculation of diluted net income per common share since the effect was anti-dilutive. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||