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Employee Benefit Plans - Schedule of Fair Value Measured by Net Asset Value (Details) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Employee benefit plans
Fair Value	$ 186,906	$ 233,524	$ 213,147
Unfunded Commitments	0	0
Cash equivalents
Employee benefit plans
Fair Value	801	637
Unfunded Commitments	0	0
Fixed income fund
Employee benefit plans
Fair Value	73,863	87,760
Unfunded Commitments	0	0
Total equity funds
Employee benefit plans
Fair Value	103,947	131,555
Unfunded Commitments	0
U.S. small/mid cap funds
Employee benefit plans
Fair Value	17,136	22,143
Unfunded Commitments	0	0
U.S. large cap funds
Employee benefit plans
Fair Value	44,572	58,451
Unfunded Commitments	0	0
International funds
Employee benefit plans
Fair Value	42,239	50,961
Unfunded Commitments	0	0
Real estate funds
Employee benefit plans
Fair Value	8,295	13,572
Unfunded Commitments	$ 0	$ 0

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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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The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

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