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Revenue Recognition (Tables)
 9 Months Ended
Sep. 30, 2023
Revenue from Contract with Customer [Abstract]  
Summary of Information About the Company's Contract Balances The following table presents information about the Company’s contract balances:

 

 

 

September 30, 2023

 

 

December 31, 2022

 

 

 

(Dollars in Millions)

 

Costs in excess of billings

 

$

20.8

 

 

$

5.1

 

Billings in excess of costs

 

$

10.9

 

 

$

10.5