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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Pension plan assets	$ 7,386	$ 52,296	$ 61,936
Recurring
Assets
Pension plan assets	7,386	52,296
Recurring \| Level 1
Assets
Pension plan assets	0	0
Recurring \| Level 2
Assets
Pension plan assets	0	0
Recurring \| Level 3
Assets
Pension plan assets	$ 7,386	$ 52,296

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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