Acquisitions (Tables)

6 Months Ended

Sep. 30, 2012

Acquisitions

Schedule of the amounts assigned to intangible assets

	Fair		Useful
	Value		Life (years)
Developed technology	$	22,300	18
Software	120		4
	$	22,420

Niotan Incorporated

Acquisitions

Schedule of components of total discounted purchase price

Cash at closing	$	30,656
Deferred payments (discounted)	41,938
Royalty payments (discounted)	8,975
Working capital adjustment	421
	$	81,990

Schedule of allocations of the aggregate purchase price based on the assets and liabilities estimated fair values

	Fair Value
Cash	$	153
Accounts receivable	479
Inventories	7,305
Prepaid expenses	186
Property, plant and equipment	15,122
Goodwill	35,584
Intangible assets	22,420
Deferred income taxes	311
Other noncurrent assets	1,303
Current liabilities	(873		)
Total net assets acquired	$	81,990