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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013
STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE |  |  |  |  |
Common stock, shares outstanding | 143,389,155 |  | 143,389,155 |  | 137,630,896
Earnings per share calculations |  |  |  |  |
Net income | $ 83,988 | $ 74,015 | $ 160,729 | $ 146,106 |
Less: Preferred stock dividends |  | (1,714) |  | (3,428) |
Less: Earnings allocated to participating securities | (119) | (400) | (287) | (988) |
Basic EPS - income allocated to common stockholders | 83,869 | 71,901 | 160,442 | 141,690 |
Effect of dilutive securities: |  |  |  |  |
Restricted stock units | 51 | 33 | 129 | 68 |
Convertible preferred stock |  |  |  | 3,428 |
Diluted EPS - income allocated to common stockholders | $ 83,920 | $ 71,934 | $ 160,571 | $ 145,186 |
Number of Shares |  |  |  |  |
Weighted average shares outstanding | 143,187,000 | 137,536,000 | 142,578,000 | 137,592,000 |
Effect of dilutive securities on weighted average shares outstanding |  |  |  |  |
Stock options (in shares) | 75,000 | 59,000 | 77,000 | 55,000 |
Restricted stock units (in shares) | 284,000 | 221,000 | 359,000 | 227,000 |
Convertible preferred stock (in shares) |  |  |  | 3,699,000 |
Warrants (in shares) | 143,000 |  | 144,000 |  |
Total weighted average diluted shares outstanding | 143,689,000 | 137,816,000 | 143,158,000 | 141,573,000 |
Per Share Amounts |  |  |  |  |
Basic EPS - income allocated to common stockholders (in dollars per share) | $ 0.59 | $ 0.52 | $ 1.13 | $ 1.03 |
Diluted EPS - Income available to common stockholders (in dollars per share) | $ 0.58 | $ 0.52 | $ 1.12 | $ 1.03 |

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