Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 277,149	$ 252,585
Costs and expenses:
Cost of revenue	52,626	45,188
Research and development	40,477	37,708
Selling, general and administrative	117,996	103,484
Acquired in-process research and development	0	115,490
Costs and Expenses, Total	211,099	301,870
Other (loss) income:
Income (loss) from operations	66,050	(49,285)
Interest and other income, net	3,772	39,935
Income (loss) before income taxes	69,822	(9,350)
Income tax provision	15,268	17,175
Net income (loss)	$ 54,554	$ (26,525)
Net income (loss) per share - basic	$ 1.20	$ (0.59)
Weighted average shares outstanding - basic	45,575	45,311
Net income (loss) per share - diluted	$ 1.19	$ (0.59)
Weighted average shares outstanding - diluted	45,922	45,311