XML 1115 R93.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation (Calculation And Assumptions Utilized In Calculation Of Fair Values Of Options Granted) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]      
Aggregate grant date fair value (less than) $ 0.2 $ 0.2 $ 0.5