CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenues	$ 119,753	$ 102,217	$ 323,851	$ 274,871
Cost of revenue	37,085	37,966	106,447	115,852
Gross profit	82,668	64,251	217,404	159,019
Operating expenses:
Research and development	30,608	27,403	88,632	77,570
Sales and marketing	43,904	51,993	124,236	140,341
General and administrative	23,943	26,107	71,806	78,687
Gains, losses and other items, net	(6)	233	1,370	2,554
Total operating expenses	98,449	105,736	286,044	299,152
Loss from operations	(15,781)	(41,485)	(68,640)	(140,133)
Total other income (expense)	(86)	3,158	152	13,820
Loss from operations before income taxes	(15,867)	(38,327)	(68,488)	(126,313)
Income tax benefit	(4,142)	(287)	(11,067)	(5,931)
Net loss	$ (11,725)	$ (38,040)	$ (57,421)	$ (120,382)
Basic loss per share
Basic earnings (loss) per share (in USD per share)	$ (0.18)	$ (0.56)	$ (0.87)	$ (1.77)
Diluted earnings (loss) per share:
Diluted earnings (loss) per share (in USD per share)	$ (0.18)	$ (0.56)	$ (0.87)	$ (1.77)