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Operations and Summary of Significant Accounting Policies - Research and Development and Advertisting Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Product and Software Research and Development Costs      
Product Research and Development Costs $ 12.3 $ 10.1 $ 10.9
Selling Costs      
Advertising expenses $ 8.4 $ 8.2 $ 8.2