Commitments and Contingencies (Tables)

6 Months Ended

Jun. 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 June 30, 2016 and December 31, 2015:

	2016		2015
Financing proceeds	$	—	$	2.1
Holdback escrow	15.2		16.8
Capping, closure and post-closure obligations	27.6		27.3
Insurance	53.9		54.1
Other	0.1		—
Total restricted cash and marketable securities	$	96.8	$	100.3