Quarterly report pursuant to Section 13 or 15(d)

PENSION PLANS - Components of Pension Cost (Details)

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PENSION PLANS - Components of Pension Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Retirement Benefits [Abstract]    
Service cost – benefits earned during the period $ 6,224 $ 6,115
Interest cost on projected benefit obligations 16,013 14,709
Expected return on plan assets (23,834) (23,797)
Pension settlement charges 6,842 0
Pension curtailment losses 9,483 0
Amortization of deferred amounts:    
Net deferred actuarial losses 8,822 10,002
Deferred prior service costs 669 645
Net periodic pension cost $ 24,219 $ 7,674