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Goodwill and Intangible Assets
 9 Months Ended
Jan. 01, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Disclosure [Text Block] GOODWILL AND INTANGIBLE ASSETS
The changes in the carrying amount of goodwill for the nine months ended January 1, 2022, are as follows (in thousands):
Mobile ProductsInfrastructure and Defense ProductsTotal
Balance as of April 3, 2021 (1)
$2,034,383 $608,325 $2,642,708 
Goodwill resulting from NextInput acquisition (Note 4)
94,292 — 94,292 
Goodwill resulting from United SiC acquisition (Note 4)
— 94,467 94,467 
7Hugs measurement period adjustments(97)— (97)
Effect of changes in foreign currency exchange rates(6,514)— (6,514)
Balance as of January 1, 2022 (1)
$2,122,064 $702,792 $2,824,856 
(1) The Company’s goodwill balance is presented net of accumulated impairment losses and write-offs totaling $621.6 million, which were recognized in fiscal years 2009, 2013 and 2014.
The following summarizes information regarding the gross carrying amounts and accumulated amortization of intangible assets (in thousands):
 January 1, 2022April 3, 2021
 Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
Developed technology $1,033,980 $391,598 $1,295,113 $750,044 
Customer relationships 105,046 40,331 459,052 403,407 
Technology licenses 2,645 2,114 2,368 2,076 
Backlog— — 1,600 1,600 
Trade names 1,960 1,227 1,090 636 
In-process research and development9,734 N/A9,695 N/A
Total (1)
$1,153,365 $435,270 $1,768,918 $1,157,763 
(1) Amounts include the impact of foreign currency translation.

At the beginning of each fiscal year, the Company removes the gross asset and accumulated amortization amounts of intangible assets that have reached the end of their useful lives and have been fully amortized. Useful lives are estimated based on the expected economic benefit to be derived from the intangible assets.

Total intangible assets amortization expense was $38.5 million and $112.5 million for the three and nine months ended January 1, 2022, respectively, and $73.3 million and $217.8 million for the three and nine months ended January 2, 2021, respectively.