INCOME TAX: (Tables)

12 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Total Income Tax Expense (Benefit)

Total income tax expense (benefit) was allocated as follows (dollars in thousands):

	Year ended March 31,
	2021		2020		2019
Continuing operations	$	(30,532)	$	(40,276)	$	(45,409)
Discontinued operations	—		207		470,346
	$	(30,532)	$	(40,069)	$	424,937

Schedule of Components of Income Tax Expense (Benefit)

Income tax expense (benefit) attributable to loss from continuing operations consists of (dollars in thousands): 

	Year ended March 31,
	2021		2020		2019
Current:
U.S. Federal	$	(28,060)	$	(33,715)	$	(39,534)
Non-U.S.	17		146		323
State	(1,071)		171		(16,092)
	(29,114)		(33,398)		(55,303)
Deferred:
U.S. Federal	(1,205)		(5,103)		1,245
Non-U.S.	(44)		(1,006)		149
State	(169)		(769)		8,500
	(1,418)		(6,878)		9,894
Total	$	(30,532)	$	(40,276)	$	(45,409)

Schedule of Income before Income Tax, Domestic and Foreign

Loss before income tax attributable to U.S. and non-U.S. continuing operations consists of (dollars in thousands):

	Year ended March 31,
	2021		2020		2019
U.S.	$	(122,257)	$	(160,457)	$	(174,867)
Non-U.S.	1,457		(5,080)		(4,489)
Total	$	(120,800)	$	(165,537)	$	(179,356)

Schedule of Effective Income Tax Rate Reconciliation

Below is a reconciliation of expected income tax benefit computed by applying the U.S. federal statutory rate of 21.0% for fiscal years 2021, 2020 and 2019 to loss before income taxes to actual income tax benefit from continuing operations (dollars in thousands): 

	Year ended March 31,
	2021		2020		2019
Computed expected income tax benefit	$	(25,368)	$	(34,763)	$	(37,665)
Increase (reduction) in income taxes resulting from:
State income taxes, net of federal benefit	(979)		(473)		(5,998)
Research and other tax credits	(4,635)		(1,517)		(3,141)
Nondeductible expenses	1,104		838		426
Stock-based compensation	(2,024)		5,025		(5,350)
Non-U.S. subsidiaries taxed at other rates	194		230		1,343
Adjustment to valuation allowances	2,230		(2,245)		5,204
Net operating loss carryback taxed at other rates	—		(7,360)		—
Other, net	(1,054)		(11)		(228)
	$	(30,532)	$	(40,276)	$	(45,409)

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at March 31, 2021 and 2020 are presented below (dollars in thousands).  

	2021		2020
Deferred tax assets:
Accrued expenses	$	3,501	$	3,978
Deferred revenue	11		16
Lease liabilities	3,324		4,939
Net operating loss carryforwards	35,945		33,516
Stock-based compensation	2,991		8,076
Nonqualified deferred compensation	2,802		2,815
Tax credit carryforwards	7,818		1,240
Other	2,856		2,778
Total deferred tax assets	59,248		57,358
Less valuation allowance	(35,332)		(32,971)
Net deferred tax assets	23,916		24,387
Deferred tax liabilities:
Prepaid expenses	(6,734)		(2,239)
Property and equipment	(248)		(1,742)
Right-of-use assets	(3,016)		(4,147)
Intangible assets	(8,409)		(9,605)
Deferred commissions	(5,391)		(3,817)
Accrued expenses	—		(2,189)
Total deferred tax liabilities	(23,798)		(23,739)
Net deferred tax assets	$	118	$	648

Schedule of Unrecognized Tax Benefits Roll Forward

The following table sets forth changes in the total gross unrecognized tax benefits for the fiscal years ended March 31, 2021, 2020 and 2019 (dollars in thousands):

	Year ended March 31,
	2021		2020		2019
Balance at beginning of period	$	23,400	$	19,600	$	15,415
Increases related to prior year tax positions	—		2,458		325
Decreases related to prior year tax positions	(139)		(1,048)		(292)
Increases related to current year tax positions	1,765		2,433		5,483
Lapse of statute of limitations	—		(43)		(1,331)
Balance at end of period	$	25,026	$	23,400	$	19,600