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Employee Benefit Plans - Defined Benefit Plans Located within Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 438,200	$ 403,500
Benefit obligation	524,300	558,400
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	411,100	378,900
Benefit obligation	437,500	470,100
Pension Plan \| Other assets, net
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	73,990	58,410
Pension Plan \| Other current liabilities
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	19,788	19,432
Pension Plan \| Other liabilities
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	$ 69,478	$ 135,440

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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