CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Revenue:
Product revenue	$ 102,989	$ 73,426
Funded research and development	6	6
Total Revenue	102,995	73,432
Costs and expenses:
Cost of product revenue	15,070	10,868
Research and development	15,660	10,210
Selling, general and administrative	51,032	37,323
Costs and Expenses, Total	81,762	58,401
Income from operations	21,233	15,031
Other income:
Investment income, net	269	63
Other (expense) income, net	(77)	53
Nonoperating Income (Expense), Total	192	116
Income before income taxes	21,425	15,147
Income tax provision	8,515	6,288
Net income	$ 12,910	$ 8,859
Basic net income per share	$ 0.30	$ 0.21
Basic weighted average shares outstanding	42,811	41,696
Diluted net income per share	$ 0.29	$ 0.20
Diluted weighted average shares outstanding	45,178	44,410