INCOME TAXES:	3 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES:	INCOME TAX:In determining the quarterly provision for income taxes, the Company applies its estimated annual effective income tax rate to its year-to-date pretax income or loss and adjusts for discrete tax items in the period. The estimated annual effective income tax rate for the current fiscal year is primarily driven by the valuation allowance, with a lesser impact attributable to federal research tax credits and the benefit of certain state tax losses, offset by income tax expenses in profitable foreign jurisdictions. Realization of the Company's net deferred tax assets is dependent upon its generation of sufficient taxable income of the proper character in future years in appropriate tax jurisdictions to obtain benefit from the reversal of temporary differences and net operating loss carryforwards. As of June 30, 2019, the Company continues to maintain a full valuation allowance on its deferred tax assets except in certain foreign jurisdictions.