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Consolidated Statement of Changes in Stockholders' Equity (Parenthetical)
 6 Months Ended
Jun. 30, 2016
$ / shares
shares
Common Stock (Par Value: $0.01):  
Shares issued for restricted stock awards, shares 2,048,028
Retained Earnings:  
Dividends paid on common stock, per share | $ / shares $ 0.34
Treasury Stock:  
Purchase of common stock, shares 543,154
Shares issued for restricted stock awards, shares 561,524