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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Shares issued for exercise of stock option, shares | 0 | 0 |
COMMON STOCK (Par Value: $0.01): |  |  |
Shares issued for restricted stock awards, shares | 2,099,865 | 1,683,564 | 1,782,601
Shares issued in follow-on common stock offering, shares | 40,625,000 |  |
RETAINED EARNINGS (ACCUMULATED DEFICIT): |  |  |
Dividends paid on common stock, per share | $ 0.68 | $ 1.00 | $ 1.00
TREASURY STOCK: |  |  |
Purchase of common stock, shares | 566,584 | 448,223 | 439,437
Shares issued for exercise of stock option, shares | 8,990 |  |
Shares issued for restricted stock awards, shares | 580,087 | 495,777 | 422,097

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