Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Cost Components of Supplemental Executive Retirement Plan (Details)

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Employee Benefit Plans - Cost Components of Supplemental Executive Retirement Plan (Details) - SERP - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 2,700 $ 2,400
Interest cost 500 500
Defined Benefit Plan, Amortization of Gain (Loss) 100 0
Net pension expense (benefit) $ 3,300 $ 2,900