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Goodwill
 3 Months Ended
Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The changes in the carrying amount of goodwill by reporting segment were as follows (in millions):
 ATMFBSTotal
Balance at December 31, 2022
$842.6 $4.6 $847.2 
Goodwill acquired during the period(1)
16.5 — 16.5 
Foreign currency translation7.2 0.1 7.3 
Balance at March 31, 2023
$866.3 $4.7 $871.0 
(1) Related to measurement period adjustments for the Merger.

Accumulated impairment loss for the FBS segment was $2.7 million as of March 31, 2023 and December 31, 2022.