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Other Financial Data (Tables)
 6 Months Ended
Jun. 30, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Summary of Major Classes of Other Current Assets

Major classes of other current assets consist of the following (in millions):

 

 

 

June 30,

2021

 

 

December 31,

2020

 

Premium finance advances and loans

 

$

443.3

 

 

$

442.7

 

Accrued supplemental, direct bill and other receivables

 

 

375.6

 

 

 

361.7

 

Refined coal production related receivables

 

 

137.8

 

 

 

95.4

 

Deferred contract costs

 

 

80.7

 

 

 

102.0

 

Prepaid expenses

 

 

132.1

 

 

 

112.1

 

Total other current assets

 

$

1,169.5

 

 

$

1,113.9