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Leases (Tables)
12 Months Ended
Dec. 31, 2023
Leases  
Schedule of Future Minimum Payment under Non-Cancellable Operating Lease Liabilities

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Years ending December 31, 

    

Amount

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(In millions)

2024

​

$

4.6

2025

​

 

3.6

2026

​

 

3.3

2027

​

 

2.2

2028

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2.0

2029 and thereafter

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17.0

Total remaining lease payments

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32.7

Less imputed interest

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10.2

Total lease obligations

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22.5

Less current obligations

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3.9

Long term lease obligations

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$

18.6