Annual report pursuant to Section 13 and 15(d)

STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details)

v3.20.4
STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Summary of compensation expense and stock award activity      
Stock-based compensation expense $ 19,995 $ 19,607 $ 17,170