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Goodwill and Other Intangible Assets
 12 Months Ended
Apr. 24, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
The changes in the carrying value of goodwill for each of our reportable segments for the fiscal year ended April 24, 2021 were as follows:
Balance at April 25, 2020Other ActivityBalance at April 24, 2021
Dental$138,724 $1,208 $139,932 
Animal Health— — — 
Corporate— — — 
Total$138,724 $1,208 $139,932 
Other activity consists of the impact from foreign currency translation.
Balances of other intangible assets, excluding goodwill, were as follows:
April 24, 2021April 25, 2020
GrossAccumulated AmortizationNetGrossAccumulated AmortizationNet
Unamortized - indefinite lived:
Trade name$12,300 $— $12,300 $12,300 $— $12,300 
Amortized - definite lived:
Customer relationships355,685 159,376 196,309 352,469 135,745 216,724 
Trade names and trademarks133,834 85,221 48,613 132,841 72,681 60,160 
Developed technology and other72,398 49,976 22,422 70,518 46,197 24,321 
Total amortized intangible assets561,917 294,573 267,344 555,828 254,623 301,205 
Total identifiable intangible assets$574,217 $294,573 $279,644 $568,128 $254,623 $313,505 
With respect to the amortized intangible assets, future amortization expense is expected to approximate $37,303, $36,928, $36,270, $35,708 and $25,889 for fiscal 2022, 2023, 2024, 2025 and 2026, respectively. Actual amounts of amortization expense may differ from estimated amounts due to additional intangible asset acquisitions, changes in foreign currency exchange rates, impairment of intangible assets, accelerated amortization of intangible assets and other events.