Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Summary of restricted cash and marketable securities

The following table summarizes our restricted cash and marketable securities:

	September 30, 2019		December 31, 2018
Capping, closure and post-closure obligations	$	30.4	$	29.5
Insurance	90.9		78.6
Total restricted cash and marketable securities	$	121.3	$	108.1

Schedule of cash equivalents, restricted cash and marketable securities

Beginning-of-period and end-of-period cash, cash equivalents, restricted cash and restricted cash equivalents as presented in the statement of cash flows is reconciled as follows:

	September 30, 2019		December 31, 2018		September 30, 2018		December 31, 2017
Cash and cash equivalents	$	55.6	$	70.5	$	81.9	$	83.3
Restricted cash and marketable securities	121.3		108.1		99.1		141.1
Less: restricted marketable securities	(48.3)		(45.3)		(44.1)		(45.3)
Cash, cash equivalents, restricted cash and restricted cash equivalents	$	128.6	$	133.3	$	136.9	$	179.1