XML 88 R73.htm IDEA: XBRL DOCUMENT v3.7.0.1
Incentive Compensation Plans and Retirement Plans (Shares Available for Grant) (Details) - 2008 Long-Term Incentive Plan [Member] - shares
Mar. 31, 2017
Aug. 06, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common stock shares authorized to issue 5,852,297  
Stock Repurchase Program, Additional Number of Shares Authorized to be Repurchased   1,000,000
Number of shares available for grant 1,591,247  
Shares issued per each award granted 1.87  
Shares available for grant, payout percentage 100.00%  
Actual Payout 200% [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares available for grant, actual payout percentage 200.00%  
Minimum [Member] | Actual Payout Range 0% to 150% [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares available for grant, actual payout percentage 0.00%  
Maximum [Member] | Actual Payout Range 0% to 150% [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares available for grant, actual payout percentage 150.00%  
Shares initially authorized under the Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common stock shares authorized to issue 900,000  
Stock Repurchase Program, Additional Number of Shares Authorized to be Repurchased 1,000,000  
Number of shares that were available for the grant of stock options under the Employee Plan and the Director Plan on August 12, 2008, the Effective Date [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common stock shares authorized to issue 888,087  
Number of shares subject to stock options outstanding under the Employee Plan and the Director Plan on August 12, 2008, the Effective Date, that were forfeited or cancelled, prior to exercise, through March 31, 2015 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common stock shares authorized to issue 3,064,210  
Shares Authorized under Incentive Plan on August 12, 2008 and August 6, 2013    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common stock shares authorized to issue 1,900,000