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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2020
Commitments and Contingencies  
Schedule of maturity of unconditional purchase commitments that are fixed and determinable

Unconditional purchase commitments that are fixed and determinable are as follows (in millions):

2021

    

$

281.9

2022

 

30.6

2023

 

0.6

2024

 

2025

 

0.8

Total

$

313.9