XML 51 R39.htm IDEA: XBRL DOCUMENT v3.19.2
Compensation Plans: Stock Based (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 01, 2019
USD ($)
shares
Jun. 30, 2019
USD ($)
shares
Jun. 30, 2019
USD ($)
shares
Jun. 30, 2018
USD ($)
shares
Jun. 30, 2019
USD ($)
shares
Jun. 30, 2018
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share available for grant   5,800,000 5,800,000   5,800,000  
Director [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued to directors     96,719 58,572    
Performance Shares (PSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period   3 years        
Stock-based compensation expense | $     $ 2.9 $ 2.4 $ 5.7 $ 4.8
Unrecognized stock based compensation expense | $   $ 13.0 $ 13.0   $ 13.0  
Performance Shares (PSUs) | Subsequent Event [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Multiplier applied to PSU awards at settlement 0          
Award vesting period 3 years          
PSUs/RSUs granted in period 793,125          
Fair value of PSUs/RSUs granted in period | $ $ 10.2          
PSU multiplier cap 1          
Net shares of common stock issued upon settlement 0          
Performance Shares (PSUs) | Minimum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Multiplier applied to PSU awards at settlement   0 0   0  
Performance Shares (PSUs) | Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Multiplier applied to PSU awards at settlement   2 2   2  
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period   3 years        
Stock-based compensation expense | $     $ 2.8 $ 2.3 $ 5.5 $ 5.0
Unrecognized stock based compensation expense | $   $ 13.7 $ 13.7   $ 13.7  
Number of shares represented by each RSU   1 1   1  
Restricted Stock Units (RSUs) | Subsequent Event [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period 3 years          
PSUs/RSUs granted in period 953,761          
Fair value of PSUs/RSUs granted in period | $ $ 11.8          
RSUs settled, awards granted in previous years 462,522          
Net shares of common stock issued upon settlement 331,530