Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Summary of restricted cash and marketable securities

The following table summarizes our restricted cash and marketable securities as of September 30, 2016 and December 31, 2015:

	2016		2015
Financing proceeds	$	—	$	2.1
Holdback escrow	—		16.8
Capping, closure and post-closure obligations	27.8		27.3
Insurance	57.8		54.1
Total restricted cash and marketable securities	$	85.6	$	100.3