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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2025
Property, Plant and Equipment [Abstract]  
Schedule of Property And Equipment
Property and equipment consisted of the following (in millions):

September 30, 2025December 31, 2024
Drilling rigs and equipment$1,856.7 $1,660.9 
Work-in-progress602.2 607.6 
Other48.8 40.9 
Total property and equipment, at cost
$2,507.7 $2,309.4