Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2015

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,
	2015		2014
Premium finance advances and loans	$	220.2	$	232.6
Accrued supplemental, direct bill and other receivables		181.1		156.3
Refined coal production related receivables		108.1		103.5
Deferred income taxes - current		120.8		102.2
Prepaid expenses		79.1		72.1
Total other current assets	$	709.3	$	666.7