v2.4.0.8

Intangible Assets and Goodwill (Tables) | 6 Months Ended
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Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | Intangible assets consist of the following (amounts in thousands):
|  | September 30, 2014
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Developed technology |  | $ | 559,828 |  |  | $ | (161,145 | ) |  | $ | 398,683 |
Customer-related |  | 263,805 |  |  | (147,489 | ) |  | 116,316 |
Trademarks and trade names |  | 15,730 |  |  | (8,323 | ) |  | 7,407 |
Backlog |  | 26,302 |  |  | (25,331 | ) |  | 971 |
In-process technology |  | 75,280 |  |  | — |  |  | 75,280 |
Distribution rights |  | 5,585 |  |  | (5,217 | ) |  | 368 |
Covenants not to compete |  | 400 |  |  | (400 | ) |  | — |
|  | $ | 946,930 |  |  | $ | (347,905 | ) |  | $ | 599,025 |
|  | March 31, 2014
|  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Developed technology |  | $ | 402,669 |  |  | $ | (117,222 | ) |  | $ | 285,447 |
Customer-related |  | 195,800 |  |  | (109,170 | ) |  | 86,630 |
Trademarks and trade names |  | 15,730 |  |  | (7,118 | ) |  | 8,612 |
Backlog |  | 24,610 |  |  | (24,610 | ) |  | — |
In-process technology |  | 64,396 |  |  | — |  |  | 64,396 |
Distribution rights |  | 5,585 |  |  | (5,171 | ) |  | 414 |
Covenants not to compete |  | 400 |  |  | (400 | ) |  | — |
|  | $ | 709,190 |  |  | $ | (263,691 | ) |  | $ | 445,499 |
Projected Amortization Expense | The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2015 through fiscal 2019, absent any future acquisitions or impairment charges (amounts in thousands):
Year ending March 31, | Projected Amortization Expense
2015 | $99,063
2016 | 150,298
2017 | 92,227
2018 | 73,926
2019 | 65,650
Goodwill Activity | Goodwill activity for the six months ended September 30, 2014 was as follows (amounts in thousands):
| Semiconductor Products Reporting Unit |  | Technology Licensing Reporting Unit
Balance at March 31, 2014 | $ | 256,897 |  |  | $ | 19,200 |
Additions due to the acquisition of Supertex | 132,508 |  |  | — |
Additions due to acquisition of controlling interest in ISSC | 152,243 |  |  | — |
Adjustments due to other acquisitions | 625 |  |  | — |
Foreign currency translation adjustments | (3,508 | ) |  | — |
Balance at September 30, 2014 | $ | 538,765 |  |  | $ | 19,200 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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