CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net revenue	$ 3,504,800	$ 3,372,772	$ 3,088,970
Cost of goods sold	1,535,401	1,535,085	1,542,450
Gross profit	1,969,399	1,837,687	1,546,520
Selling and marketing	516,429	444,985	458,424
General and administrative	510,855	390,683	318,235
Research and development	406,566	317,311	296,398
Depreciation and amortization	61,105	55,596	48,113
Business reorganization	849	(272)	83
Total operating expenses	1,495,804	1,208,303	1,121,253
Income from operations	473,595	629,384	425,267
Interest and other, net	(14,212)	8,796	38,505
Gain (loss) on long-term investments, net	6,015	39,636	(5,333)
Income before income taxes	465,398	677,816	458,439
Provision for income taxes	47,376	88,930	53,980
Net income	$ 418,022	$ 588,886	$ 404,459
Earnings per share:
Basic earnings per share (in dollars per share)	$ 3.62	$ 5.14	$ 3.58
Diluted earnings per share (in dollars per share)	$ 3.58	$ 5.09	$ 3.54