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SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN - Components of Net Periodic Pension Cost (Details) - Supplemental Executive Retirement Plan [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Components of net periodic pension cost [Abstract]
Service cost	$ 273	$ 227	$ 819	$ 742
Interest cost	321	403	963	1,209
Amortization of prior service cost	275	399	824	1,197
Amortization of loss	545	410	1,636	1,231
Total net periodic benefit cost	$ 1,414	$ 1,439	$ 4,242	$ 4,379

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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