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Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The following table displays the changes in the gross carrying amount of goodwill:
Amount
 (in thousands)
Balance at December 31, 2020$213,601 
Alcide acquisition39,723 
Balance at March 31, 2021$253,324 
Schedule of Identifiable Intangible Assets
The following table presents details of our intangible assets, which include acquired identifiable intangible assets and capitalized internal-use software costs:
  As of March 31, 2021As of December 31, 2020
 Weighted-
Average
Life (years)		Gross Carrying
Amount		Accumulated
Amortization		Net Book ValueGross Carrying
Amount		Accumulated
Amortization		Net Book Value
  (in thousands)
Intangible assets subject to amortization:
Developed technology5.7$64,855 $(27,521)$37,334 $54,455 $(24,780)$29,675 
Customer relationships6.32,700 (1,061)1,639 2,700 (958)1,742 
Trade names5.41,419 (684)735 1,419 (639)780 
Total acquired intangible assets68,974 (29,266)39,708 58,574 (26,377)32,197 
Internal-use software3.017,760 (4,760)13,000 16,002 (3,903)12,099 
Total intangible assets$86,734 $(34,026)$52,708 $74,576 $(30,280)$44,296 
Schedule of Estimated Amortization Expense
Estimated future amortization expense of the acquired identifiable intangible assets and completed capitalized internal-use software costs as of March 31, 2021 was as follows (in thousands):
2021 (for the remaining nine months)$10,929 
202211,934 
20239,048 
20245,605 
20255,177 
2026 and thereafter2,987 
Total$45,680