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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Nov. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill by Segment | djustments to goodwill for the six months ended November 30, 2015.
Intangible Assets | As of November 30, 2015 and May 31, 2015, intangible assets consisted of the following:
| November 30, 2015
| Gross carrying value |  | Accumulated amortization |  | Net carrying value |  | Weighted avg useful life
| (in thousands) |  | (years)
Product technologies | $ | 148,390 |  |  | $ | (46,355 | ) |  | $ | 102,035 |  |  | 10.2
Customer relationships | 86,322 |  |  | (44,895 | ) |  | 41,427 |  |  | 12.0
Trademarks | 28,545 |  |  | (4,696 | ) |  | 23,849 |  |  | 10.7
In process R&D acquired | 3,600 |  |  | — |  |  | 3,600 |  |  | Indefinite
Licenses | 7,913 |  |  | (6,313 | ) |  | 1,600 |  |  | 7.6
Distributor relationships | 900 |  |  | (900 | ) |  | — |  |  | 3.0
| $ | 275,670 |  |  | $ | (103,159 | ) |  | $ | 172,511 |  |  |
| May 31, 2015
| Gross carrying value |  | Accumulated amortization |  | Net carrying value |  | Weighted avg useful life
| (in thousands) |  | (years)
Product technologies | $ | 148,776 |  |  | $ | (41,447 | ) |  | $ | 107,329 |  |  | 10.2
Customer relationships | 86,371 |  |  | (42,813 | ) |  | 43,558 |  |  | 12.0
Trademarks | 28,545 |  |  | (3,229 | ) |  | 25,316 |  |  | 10.7
In process R&D acquired | 3,600 |  |  | — |  |  | 3,600 |  |  | Indefinite
Licenses | 7,913 |  |  | (5,910 | ) |  | 2,003 |  |  | 8.3
Distributor relationships | 900 |  |  | (900 | ) |  | — |  |  | 3.0
| $ | 276,105 |  |  | $ | (94,299 | ) |  | $ | 181,806 |  |  |

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- Definition Schedule of intangible assets. + References No definition available. + 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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