CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net revenue	$ 858,198	$ 841,142	$ 1,671,544	$ 1,672,452
Cost of goods sold	456,682	432,505	786,397	909,194
Gross profit	401,516	408,637	885,147	763,258
Selling and marketing	136,019	113,691	239,873	198,470
General and administrative	127,331	91,433	231,778	193,606
Research and development	101,508	74,216	193,802	147,324
Depreciation and amortization	16,181	13,691	28,646	26,109
Business reorganization	326	239	423	239
Total operating expenses	381,365	293,270	694,522	565,748
Income from operations	20,151	115,367	190,625	197,510
Interest and other, net	(572)	2,706	(1,599)	10,924
Gain (loss) on long-term investments, net	395	(655)	2,392	(655)
Income before income taxes	19,974	117,418	191,418	207,779
Provision for income taxes	9,677	18,097	28,865	19,953
Net income	$ 10,297	$ 99,321	$ 162,553	$ 187,826
Earnings per share:
Basic earnings per share (in dollars per share)	$ 0.09	$ 0.87	$ 1.40	$ 1.65
Diluted earnings per share (in dollars per share)	$ 0.09	$ 0.86	$ 1.39	$ 1.63