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Goodwill and Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The following table summarizes the changes in the carrying amount of goodwill for the three months ended March 31, 2021:
(in millions)DiagnosticOtherTotal
Beginning balance$272.3 $56.9 $329.2 
Translation adjustments(0.9)— (0.9)
Ending balance$271.4 $56.9 $328.3 
Schedule of Amortizable Intangible Assets The following summarizes the amounts reported as intangible assets:
(in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
At March 31, 2021:
Purchased licenses and technologies$816.6 $(263.1)$553.5 
Customer relationships4.7 (4.6)0.1 
Trademarks3.0 (1.5)1.5 
Total amortized intangible assets824.3 (269.2)555.1 
In-process research and development4.8 — 4.8 
Total unamortized intangible assets4.8 — 4.8 
Total intangible assets$829.1 $(269.2)$559.9 
(in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
At December 31, 2020:
Purchased licenses and technologies$818.2 $(248.2)$570.0 
Customer relationships4.7 (4.5)0.2 
Trademarks3.0 (1.5)1.5 
Total amortized intangible assets825.9 (254.2)571.7 
In-process research and development4.8 — 4.8 
Total unamortized intangible assets4.8 — 4.8 
Total intangible assets$830.7 $(254.2)$576.5 
Schedule of Non-amortizable Intangible Assets The following summarizes the amounts reported as intangible assets:
(in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
At March 31, 2021:
Purchased licenses and technologies$816.6 $(263.1)$553.5 
Customer relationships4.7 (4.6)0.1 
Trademarks3.0 (1.5)1.5 
Total amortized intangible assets824.3 (269.2)555.1 
In-process research and development4.8 — 4.8 
Total unamortized intangible assets4.8 — 4.8 
Total intangible assets$829.1 $(269.2)$559.9 
(in millions)Gross
Carrying
Amount
Accumulated
Amortization
Net
At December 31, 2020:
Purchased licenses and technologies$818.2 $(248.2)$570.0 
Customer relationships4.7 (4.5)0.2 
Trademarks3.0 (1.5)1.5 
Total amortized intangible assets825.9 (254.2)571.7 
In-process research and development4.8 — 4.8 
Total unamortized intangible assets4.8 — 4.8 
Total intangible assets$830.7 $(254.2)$576.5 
Schedule of Recorded Amortization Expense for Intangible Assets
The Company recorded amortization expense during the respective periods for these intangible assets as follows:

Three Months Ended
March 31,
(in millions)20212020
Amortization of intangible assets$15.5 $15.3