XML 55 R36.htm IDEA: XBRL DOCUMENT v3.20.4
RESTRICTED ASSETS (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Summary of Restricted Assets
A summary of restricted assets is as follows:
 December 31,
 Non Current:
20202019
Restricted investment securities - landfill closure$1,848 $1,586