Intangible Assets and Goodwill (Tables)

3 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets consist of the following (amounts in thousands):



	June 30, 2016
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	1,813,105	$	(301,019	)	$	1,512,086
Customer-related	907,742		(229,241		)	678,501
Trademarks and trade names	11,700		(8,088		)	3,612
Backlog	28,700		(7,075		)	21,625
In-process technology	185,566		—			185,566
Distribution rights	5,580		(5,313		)	267
Other	1,805		(105		)	1,700
Total	$	2,954,198	$	(550,841	)	$	2,403,357



	March 31, 2016
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	724,883	$	(255,460	)	$	469,423
Customer-related	278,542		(200,331		)	78,211
Trademarks and trade names	11,700		(7,571		)	4,129
In-process technology	54,308		—			54,308
Distribution rights	5,580		(5,302		)	278
Total	$	1,075,013	$	(468,664	)	$	606,349

Projected Amortization Expense

The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2017 through fiscal 2021, absent any future acquisitions or impairment charges (amounts in thousands):



Year ending March 31,	Projected Amortization Expense
2017	$253,615
2018	445,471
2019	363,978
2020	314,257
2021	288,469

Goodwill Activity

Goodwill activity for the three months ended June 30, 2016 was as follows (amounts in thousands):



	Semiconductor Products Reporting Unit			Technology Licensing Reporting Unit
Balance at March 31, 2016	$	993,452		$	19,200
Additions due to the acquisition of Atmel	1,378,317			—
Adjustments due to the acquisition of Micrel	(14		)	—
Balance at June 30, 2016	$	2,371,755		$	19,200