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Revenue (Tables)
3 Months Ended
Mar. 31, 2023
Revenue Recognition [Abstract]  
Disaggregation of Revenue [Table Text Block]
The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers:
 Three Months Ended March 31,
20232022
 (In millions)
U.S.$242.8 $224.6 
EMEA55.0 58.6 
China25.1 25.1 
Other41.5 38.6 
Total revenues$364.4 $346.9