Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Employee Benefits - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Service costs included in net periodic pension expense	$ 0
Expected long-term rate of return on plan assets	2.42%		3.45%
Settlement Charge	$ 749,000	$ 0
Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation (as a percentage)	90.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation (as a percentage)	10.00%