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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE |  |  |  |  |
Common stock, shares outstanding | 143,405,133 |  | 143,405,133 |  | 137,630,896
Earnings per share calculations |  |  |  |  |
Net income | $ 88,756 | $ 73,157 | $ 249,485 | $ 219,263 |
Less: Preferred stock dividends |  |  |  | (3,428) |
Less: Earnings allocated to participating securities | (118) | (372) | (407) | (1,361) |
Basic EPS - income allocated to common stockholders | 88,638 | 72,785 | 249,078 | 214,474 |
Effect of dilutive securities: |  |  |  |  |
Restricted stock units | 69 | 54 | 197 | 124 |
Convertible preferred stock |  |  |  | 3,428 |
Diluted EPS - income allocated to common stockholders | $ 88,707 | $ 72,839 | $ 249,275 | $ 218,026 |
Number of Shares |  |  |  |  |
Weighted average shares outstanding | 143,210,000 | 137,036,000 | 142,791,000 | 137,404,000 |
Effect of dilutive securities on weighted average shares outstanding |  |  |  |  |
Stock options (in shares) | 75,000 | 71,000 | 76,000 | 66,000 |
Restricted stock units (in shares) | 381,000 | 360,000 | 365,000 | 276,000 |
Convertible preferred stock (in shares) |  |  |  | 2,453,000 |
Warrants (in shares) | 144,000 |  | 145,000 |  |
Total weighted average diluted shares outstanding | 143,810,000 | 137,467,000 | 143,377,000 | 140,199,000 |
Per Share Amounts |  |  |  |  |
Basic EPS - income allocated to common stockholders (in dollars per share) | $ 0.62 | $ 0.53 | $ 1.74 | $ 1.56 |
Diluted EPS - Income available to common stockholders (in dollars per share) | $ 0.62 | $ 0.53 | $ 1.74 | $ 1.56 |

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