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Revenue (Tables)
6 Months Ended
Jun. 30, 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 June 30,Six Months Ended June 30,
2023202220232022
 (In millions)
U.S.$247.6 $230.9 $490.4 $455.5 
EMEA56.7 56.4 111.7 115.0 
China23.9 26.5 49.0 52.5 
Other43.8 38.1 85.3 75.8 
Total revenues$372.0 $351.9 $736.4 $698.8