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Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2018

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):

		December 31,
		2018				2017
Premium finance advances and loans		$	316.2			$	305.5
Accrued supplemental, direct bill and other receivables			348.2				244.5
Refined coal production related receivables			160.2				156.8
Deferred contract costs			91.6				83.3
Prepaid expenses			108.2				91.5
Total other current assets		$	1,024.4			$	881.6

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Tabular disclosure of the carrying amounts of other current assets.

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