| Goodwill and Other Intangible Assets |
Goodwill and Other Intangible Assets Goodwill balances and related activity by business segment are as follows: | | | | | | | | | | | | | | | | | | Balance at April 25, 2015 | | Acquisition Activity and Divestitures | | Other Activity | | Balance at January 30, 2016 | Corporate | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| Dental | 139,449 |
| | — |
| | (1,381 | ) | | 138,068 |
| Animal Health | 160,475 |
| | 518,370 |
| | (1,597 | ) | | 677,248 |
| Total | $ | 299,924 |
| | $ | 518,370 |
| | $ | (2,978 | ) | | $ | 815,316 |
|
Balances of other intangible assets, excluding goodwill, are as follows: | | | | | | | | | | January 30, 2016 | | April 25, 2015 | Unamortized – indefinite lived: | | | | Copyrights, trade names and trademarks | $ | 29,900 |
| | $ | 17,600 |
| Amortized: | | | | Distribution agreement, customer lists and other | 638,854 |
| | 221,359 |
| Less: Accumulated amortization | (146,539 | ) | | (113,934 | ) | Net amortized intangible assets | 492,315 |
| | 107,425 |
| Total identifiable intangible assets, net | $ | 522,215 |
| | $ | 125,025 |
|
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