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Other Financial Data (Tables)
 6 Months Ended
Jun. 30, 2020
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,

2020

 

 

December 31,

2019

 

Premium finance advances and loans

 

$

342.6

 

 

$

388.1

 

Accrued supplemental, direct bill and other receivables

 

 

289.1

 

 

 

369.1

 

Refined coal production related receivables

 

 

88.3

 

 

 

103.4

 

Deferred contract costs

 

 

70.1

 

 

 

98.3

 

Prepaid expenses

 

 

94.1

 

 

 

115.5

 

Total other current assets

 

$

884.2

 

 

$

1,074.4