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GOODWILL AND INTANGIBLE ASSETS (Tables)
3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Summary of Changes in Goodwill
The following table summarizes the changes in the carrying amount of goodwill (in millions):
Amount
Balance at December 31, 2020$336.7 
Acquisition activity8.0 
Translation and other(0.2)
Balance at March 31, 2021$344.5 
Schedule of Intangible Assets
The following table summarizes the components of gross intangible assets, accumulated amortization, and net intangible asset balances as of March 31, 2021, and December 31, 2020 (in millions):
March 31, 2021December 31, 2020
Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Patents and developed technology$215.3 $(161.7)$53.6 $198.4 $(158.7)$39.7 
Distribution rights and others44.1 (31.8)12.3 91.9 (77.4)14.5 
Customer relationships59.9 (38.6)21.3 59.0 (35.8)23.2 
Total intangible assets$319.3 $(232.1)$87.2 $349.3 $(271.9)$77.4 
Schedule Of Estimated Future Amortization Expense Of Intangible Assets
The estimated future amortization expense related to intangible assets as of March 31, 2021, is as follows (in millions):
Fiscal YearAmount
Remainder of 2021$18.9 
202223.1 
202318.5 
202414.3 
20259.5 
2026 and thereafter2.9 
Total$87.2