INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 5,594	$ (11,552)	$ 11,348	$ (24,417)
Effective rate	18.10%
Valuation allowance, increase (decrease)	$ 5,075		10,575
Increase in tax benefit, tax credits	2,230		8,848
Excess tax benefits	1,375		6,918
Tax benefits, geographic mix of earnings	6,143		10,638
Net tax provision related to Tax Act	$ 1,000		$ 3,391

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

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