Business Acquisitions (Notes)

3 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Business Acquisitions

Business Acquisitions

Acquisition of ISSC

On July 17, 2014, the Company acquired an 83.5% interest in Taiwan based ISSC, a leading provider of low power Bluetooth and advanced wireless solutions for the Internet of Things (IoT) market. The Company acquired the 83.5% ownership interest through a tender offer process. Since the completion of the tender offer, the Company has continued to acquire additional shares of ISSC, and as of June 30, 2015, the Company had completed the acquisition of 100% of the outstanding shares of ISSC.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price, including adjustments to the purchase price allocation from the previously reported figures at March 31, 2015, to the net assets acquired based on their estimated fair values as of July 17, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized as of June 30, 2015 (amounts in thousands):

Assets acquired	Previously Reported March 31, 2015			Adjustments			June 30, 2015
Cash and cash equivalents	$	15,120		$	—		$	15,120
Short-term investments	27,063			—			27,063
Accounts receivable, net	8,792			—			8,792
Inventories	16,542			—			16,542
Prepaid expenses and other current assets	2,501			—			2,501
Property, plant and equipment, net	2,637			—			2,637
Goodwill	154,399			389			154,788
Purchased intangible assets	147,800			—			147,800
Other assets	1,370			—			1,370
Total assets acquired	376,224			389			376,613
Liabilities assumed
Accounts payable	(9,860		)	—			(9,860		)
Other current liabilities	(16,535		)	—			(16,535		)
Long-term income tax payable	(4,402		)	(389		)	(4,791		)
Deferred tax liability	(25,126		)	—			(25,126		)
Other long-term liabilities	(245		)	—			(245		)
Total liabilities assumed	(56,168		)	(389		)	(56,557		)
Net assets acquired including noncontrolling interest	320,056			—			320,056
Less: noncontrolling interest	(52,467		)	—			(52,467		)
Net assets acquired	$	267,589		$	—		$	267,589

Purchased Intangible Assets	Useful Life	July 17, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	27,200
Customer-related	3	51,100
Backlog	1	600
		$	147,800

Acquisition of Supertex

On April 1, 2014, the Company acquired Supertex Inc., a publicly traded company based in Sunnyvale, California. Supertex is a leader in high voltage analog and mixed signal technologies, with a strong position in the medical, lighting and industrial control markets.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price to the net assets acquired based on their estimated fair values as of April 1, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized on March 31, 2015 (amounts in thousands):

Assets acquired	March 31, 2015
Cash and cash equivalents	$	14,790
Short-term investments	140,984
Accounts receivable, net	7,047
Inventories	27,630
Prepaid expenses	1,493
Deferred tax assets	2,456
Other current assets	12,625
Property, plant and equipment, net	15,679
Goodwill	143,160
Purchased intangible assets	89,600
Other assets	325
Total assets acquired	455,789
Liabilities assumed
Accounts payable	(8,481		)
Accrued liabilities	(19,224		)
Long-term income tax payable	(3,796		)
Deferred tax liability	(32,511		)
Total liabilities assumed	(64,012		)
Net assets acquired	$	391,777

Purchased Intangible Assets	Useful Life	April 1, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	1,900
Customer-related	2	17,700
Backlog	1	1,100
		$	89,600