XML 93 R82.htm IDEA: XBRL DOCUMENT v3.21.1
DEFERRED COMPENSATION (Details) - SERP - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
DEFERRED COMPENSATION    
Period over which SERP benefit payments to be paid 30 years  
Deferred compensation expense   $ 970