DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES, Narrative (Details) - 12 months ended Mar. 31, 2020 £ in Millions, $ in Millions  | 
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GBP (£)  | 
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| Derivative Financial Instruments and Hedging Activities [Abstract] | ||
| Foreign currency put option contracts amount | £ | £ 5 | |
| Foreign Exchange Contract | ||
| Derivative Financial Instruments and Hedging Activities [Abstract] | ||
| Derivative instruments, net losses in accumulated other comprehensive loss | $ | $ (1.4) | 
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- Definition Nominal or face amount used to calculate payments on the derivative asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Details 
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