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Intangible Assets
3 Months Ended
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
Intangible assets are net of accumulated amortization of $138.9 million and $129.9 million at March 31, 2020 and December 31, 2019, respectively.
The aggregate amortization expense for the three months ended March 31, 2020 and 2019 was $11.9 million and $6.0 million, respectively.