Annual report pursuant to Section 13 and 15(d)

Employee Retirement Plans - Defined Benefit Plan, Plan with Accumulated Benefit Obligation and Projected Benefit Obligation in Excess of Plan Assets (Details)

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Employee Retirement Plans - Defined Benefit Plan, Plan with Accumulated Benefit Obligation and Projected Benefit Obligation in Excess of Plan Assets (Details) - Defined Benefit Plan, Underfunded Plan - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Accumulated benefit obligation $ 6,258 $ 9,211
Plans with accumulated benefit obligation in excess of plan assets, plan assets 4,895 5,198
Projected benefit obligation 6,573 9,733
Plan with projected benefit obligation in excess of plan assets, plan assets $ 4,895 $ 5,198