INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Increase (decrease) in income taxes	$ (4,553)	$ 18,078
Benefit from income taxes	$ 120,098	$ 12,914	$ 108,750	$ 37,331
Effective rate	(200.70%)		(64.60%)
Valuation allowance, increase (decrease)	$ 108,679		$ 108,679
Increase in tax benefit, tax credits	12,006		18,924
Excess tax benefits	6,491		15,339
Tax benefits, geographic mix of earnings	$ 15,354		$ 4,716

Effective Income Tax Rate Reconciliation, Mix Geographic Earnings, Amount

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Income Tax Expense (Benefit), Tax Credits

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to excess tax benefit for share-based compensation cost.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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