| Earnings Per Common Share |
| | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2013 | | 2012 | | 2013 | | 2012 | | (In thousands, except per share data) | Basic earnings per Class A common share | | | | | | | | Net income | $ | 11,304 |
| | $ | 10,869 |
| | $ | 26,891 |
| | $ | 27,237 |
| Income attributable to preferred stock | (1,798 | ) | | (1,756 | ) | | (4,289 | ) | | (4,406 | ) | Income attributable to other classes of common stock | (1,257 | ) | | (1,662 | ) | | (3,088 | ) | | (4,223 | ) | Net income allocated to Class A common stockholders | $ | 8,249 |
| | $ | 7,451 |
| | $ | 19,514 |
| | $ | 18,608 |
| Weighted-average Class A shares issued and outstanding | 31,463 |
| | 29,098 |
| | 31,208 |
| | 28,968 |
| Basic earnings per Class A common share | $ | 0.26 |
| | $ | 0.26 |
| | $ | 0.63 |
| | $ | 0.64 |
| | | | | | | | | Diluted earnings per Class A common share | | | | | | | | Net income allocated to Class A common stockholders | $ | 8,249 |
| | $ | 7,451 |
| | $ | 19,514 |
| | $ | 18,608 |
| Re-allocated earnings | 1,087 |
| | 1,394 |
| | 2,642 |
| | 3,537 |
| Diluted net income allocated to Class A common stockholders | 9,336 |
| | 8,845 |
| | 22,156 |
| | 22,145 |
| Weighted-average Class A shares issued and outstanding | 31,463 |
| | 29,098 |
| | 31,208 |
| | 28,968 |
| Dilutive potential common shares: | | | | | | | | Class B common stock | 4,975 |
| | 6,640 |
| | 5,086 |
| | 6,830 |
| Stock options | 41 |
| | — |
| | 10 |
| | — |
| Restricted stock units | 205 |
| | 3 |
| | 154 |
| | 5 |
| Employee stock purchase plan | 2 |
| | 5 |
| | — |
| | 7 |
| Diluted weighted-average Class A shares issued and outstanding | 36,686 |
| | 35,746 |
| | 36,458 |
| | 35,810 |
| Diluted earnings per Class A common share | $ | 0.25 |
| | $ | 0.25 |
| | $ | 0.61 |
| | $ | 0.62 |
|
Note 8—Earnings per Common Share (continued) | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2013 | | 2012 | | 2013 | | 2012 | | (In thousands, except per share data) | Basic earnings per Class B common share | | | | | | | | Net income | $ | 11,304 |
| | $ | 10,869 |
| | $ | 26,891 |
| | $ | 27,237 |
| Income attributable to preferred stock | (1,798 | ) | | (1,756 | ) | | (4,289 | ) | | (4,406 | ) | Income attributable to other classes of common stock | (8,479 | ) | | (7,789 | ) | | (20,097 | ) | | (19,491 | ) | Net income allocated to Class B common stockholders | $ | 1,027 |
| | $ | 1,324 |
| | $ | 2,505 |
| | $ | 3,340 |
| Weighted-average Class B shares issued and outstanding | 3,917 |
| | 5,171 |
| | 4,006 |
| | 5,200 |
| Basic earnings per Class B common share | $ | 0.26 |
| | $ | 0.26 |
| | $ | 0.63 |
| | $ | 0.64 |
| | | | | | | | | Diluted earnings per Class B common share | | | | | | | | Net income allocated to Class B common stockholders | $ | 1,027 |
| | $ | 1,324 |
| | $ | 2,505 |
| | $ | 3,340 |
| Re-allocated earnings | 239 |
| | 319 |
| | 586 |
| | 883 |
| Diluted net income allocated to Class B common stockholders | $ | 1,266 |
| | $ | 1,643 |
| | $ | 3,091 |
| | $ | 4,223 |
| Weighted-average Class B shares issued and outstanding | 3,917 |
| | 5,171 |
| | 4,006 |
| | 5,200 |
| Dilutive potential common shares: | | | | | | | | Stock options | 1,058 |
| | 1,469 |
| | 1,080 |
| | 1,630 |
| Diluted weighted-average Class B shares issued and outstanding | 4,975 |
| | 6,640 |
| | 5,086 |
| | 6,830 |
| Diluted earnings per Class B common share | $ | 0.25 |
| | $ | 0.25 |
| | $ | 0.61 |
| | $ | 0.62 |
|
|