XML 35 R35.htm IDEA: XBRL DOCUMENT v3.20.1
Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
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:
March 31, 2020December 31, 2019March 31, 2019December 31, 2018
Cash and cash equivalents$281.6  $47.1  $68.0  $70.5  
Restricted cash and marketable securities117.7  179.4  115.1  108.1  
Less: restricted marketable securities(55.9) (49.1) (46.6) (45.3) 
Cash, cash equivalents, restricted cash and restricted cash equivalents$343.4  $177.4  $136.5  $133.3  
Summary of restricted cash and marketable securities
The following table summarizes our restricted cash and marketable securities:
March 31, 2020December 31, 2019
Capping, closure and post-closure obligations$31.0  $30.6  
Insurance86.7  99.4  
Payment for maturing tax-exempt financing—  49.4  
Total restricted cash and marketable securities$117.7  $179.4