EMPLOYEE BENEFIT PLANS, Reconciliation of Funded Status (Details) - USD ($) $ in Thousands |
Mar. 31, 2020 |
Oct. 31, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
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| EMPLOYEE BENEFIT PLANS [Abstract] | ||||
| Accumulated benefit obligation (ABO) | $ 494,992 | $ 528,858 | $ 504,076 | |
| Projected benefit obligation (PBO) | 494,992 | 528,858 | 504,076 | $ 545,128 |
| Fair value of assets | (477,137) | (495,343) | (478,350) | $ (508,375) |
| Net recognized pension liability | 17,855 | 33,515 | 25,726 | |
| Amounts recognized in accumulated other comprehensive loss | $ (6,389) | $ 0 | $ 219,232 |
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- References No definition available.
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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