INCOME TAXES - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Reconciliation of Unrecognized Tax Benefits
Balance, beginning of fiscal year	$ 251,722	$ 227,590
Additions based on tax position related to the current year	24,052	82,966
Additions for tax positions of prior years	4,137	5,575
Reductions for tax positions of prior years	(3,162)	(15,432)
Reductions related to lapse of applicable statute of limitations	(18,355)	(14,786)
Settlements	0	(22,174)
Increase from foreign exchange rates fluctuation	(12,386)
Decrease from impact from foreign exchange rates fluctuation		(12,017)
Balance, end of fiscal year	246,008	251,722	$ 227,590
Unrecognized tax benefits affect annual effective tax rate if benefits eventually recognized	165,600
Interest and penalties recognized	(900)	(2,900)	(3,300)
Amount accrued for the payment of interest	12,300	$ 13,300	$ 16,200
Maximum
Reconciliation of Unrecognized Tax Benefits
Increase in unrecognized tax benefit	$ 16,000

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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