XML 22 R7.htm IDEA: XBRL DOCUMENT v3.6.0.2
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