XML 108 R94.htm IDEA: XBRL DOCUMENT v3.22.0.1
Employee Benefit Plans - Cash Awards (Details) - Fixed Value Cash Awards - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Long-term incentive cash awards granted $ 3.5 $ 4.7 $ 4.6
Vesting period 3 years    
Deferred compensation cost $ 4.0 $ 4.4 $ 3.2