XML 114 R99.htm IDEA: XBRL DOCUMENT v3.21.1
EMPLOYEE BENEFIT PLANS (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
USD ($)
pension_plan
Mar. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]    
Number of qualified defined benefit plans | pension_plan 1  
Pension contributions paid $ 0  
Weighted-average expected long-term rate of return on plan assets 5.70%  
Pension    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 0 $ 0
Interest cost 557 677
Expected return on plan assets (936) (876)
Amortization of losses 288 215
Net periodic benefit (credit) cost (91) 16
Postretirement    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 2 2
Interest cost 11 13
Expected return on plan assets 0 0
Amortization of losses 5 2
Net periodic benefit (credit) cost $ 18 $ 17