Business Acquisitions (Tables)

9 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Schedule of Purchase Price Allocation [Table Text Block]

The table below represents the preliminary allocation of the purchase price to the net assets acquired based on their estimated fair values as of August 2, 2012, as well as the associated estimated useful lives of the acquired intangible assets at that date:

	August 2, 2012
	(in thousands)
Assets acquired
Cash and cash equivalents	$	180,925
Accounts receivable, net	58,441
Inventories	86,244
Prepaid expenses	5,617
Deferred tax assets	13,717
Other current assets	18,248
Property, plant and equipment, net	36,210
Long-term investments	24,275
Goodwill	161,063
Intangible assets, net	10,214
Purchased intangible assets	517,800
Other assets	3,835
Total assets acquired	1,116,589
Liabilities assumed
Accounts payable	(28,035		)
Accrued liabilities	(54,992		)
Deferred income on shipments to distributors	(11,376		)
Long-term income tax payable	(72,312		)
Deferred tax liability	(20,194		)
Other liabilities	(10,079		)
Total liabilities assumed	(196,988		)
Purchase price allocated	$	919,601

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

The amount of cash paid by the Company, net of cash acquired from SMSC of $180.9 million, was $731.8 million.

Purchased Intangible Assets	Useful Life	August 2, 2012
	(in years)	(in thousands)
Core/developed technology	7-15	$	238,100
In-process technology	7-15	80,300
Corporate trade name	1	2,300
Product trademarks	6	11,700
Customer-related	5	163,500
Backlog	1	21,900
		$	517,800

Business Acquisition, Pro Forma Information [Table Text Block]

The pro forma results of operations are presented for informational purposes only and are not indicative of the results of operations that would have been achieved if the acquisition had taken place on April 1, 2011 or of results that may occur in the future (amounts in thousands):

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
	2012		2011		2012		2011
Net sales	$	416,047	$	435,317	$	1,312,451	$	1,342,502
Net income	42,157		40,705		136,056		56,922
Basic earnings per share	$	0.22	$	0.21	$	0.70	$	0.30
Diluted earnings per share	$	0.21	$	0.20	$	0.67	$	0.28