XML 52 R40.htm IDEA: XBRL DOCUMENT v3.21.2
Employee Benefit Plans - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
executive
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
executive
Jun. 30, 2020
USD ($)
Apr. 30, 2021
USD ($)
executive
Dec. 31, 2020
USD ($)
Retirement Benefits [Abstract]            
Service cost of plan $ 50 $ 86 $ 199 $ 172    
Interest cost of plan $ 34 $ 125 $ 138 $ 250    
Number of executives participating in SERP | executive 2   2   2  
Supplemental executive retirement plan $ 19,965   $ 19,965   $ 20,000 $ 20,628
Employer contributions to benefit plans     $ 0      
Defined benefit plan, recognized net gain (loss) due to terminations $ 1,800