XML 86 R74.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stock-Based Compensation Programs - PCEQs (Details) - PCEQs - shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Stock-Based Compensation Programs    
Granted (in shares) 261,174 237,452
Vesting period 3 years  
Minimum    
Stock-Based Compensation Programs    
Percent of participant PCEQ award assigned that determines the number of shares available at vesting date 0.00% 0.00%
Maximum    
Stock-Based Compensation Programs    
Percent of participant PCEQ award assigned that determines the number of shares available at vesting date 200.00% 200.00%
Special Acquisition Related Incentive Plan | Minimum    
Stock-Based Compensation Programs    
Percent of participant PCEQ award assigned that determines the number of shares available at vesting date   0.00%
Special Acquisition Related Incentive Plan | Maximum    
Stock-Based Compensation Programs    
Percent of participant PCEQ award assigned that determines the number of shares available at vesting date   200.00%