XML 90 R75.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule of Goodwill (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Balance at beginning of period $ 83.7 $ 80.9
Foreign currency translation adjustments (1.0) 2.6
Acquisition of NTG 0.2
Ending balance $ 82.7 $ 83.7