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Incentive Compensation Plan Incentive Compensation Plan - Restricted Stock Awards Estimated to be Granted on a Performance Award (Details) - shares
1 Months Ended 12 Months Ended
Jun. 26, 2015
Feb. 20, 2015
Feb. 20, 2015
Feb. 05, 2015
Jan. 15, 2015
Nov. 18, 2014
Apr. 08, 2014
Mar. 25, 2014
Mar. 05, 2014
Jan. 01, 2014
Aug. 16, 2013
May. 31, 2013
Mar. 01, 2013
Jan. 28, 2013
Jan. 02, 2012
Apr. 01, 2011
Feb. 24, 2012
Nov. 21, 2011
Jan. 17, 2011
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                        
Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Target Award Participants Earn                           40.00%     40.00%   40.00%  
Performance Shares Awards As Percentage Of Target                           100.00%     100.00%   100.00%  
Percentage Of Target Award Opportunities Maximum In Certain Cases                           200.00%     200.00%   200.00%  
Vesting period of restricted stock                           1 year     1 year   1 year 10 years
Performance Based Stock Awards Vesting Period                           3 years     3 years   3 years  
Restricted Stock [Member] | Executive [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                        
Common stock issued to executive 1,000 34,200 10,000   20,000 3,500 27,500 46,000 5,000 12,626 3,000 45,000 10,000 128,611,000 100,000 25,000 68,000,000 10,000 54,166,000  
Restricted Stock [Member] | Executive [Member] | Long Term Incentive Plan [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                        
Common stock issued to executive       50,000                         34,000