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Acquisitions, Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]  
Assets Acquired and Liabilities Assumed as Part of Business Combination ash consideration, net of cash acquired, was preliminarily allocated as follows:
(in thousands)AccuricsAlsid
Accounts receivable
$180 $4,105 
Prepaid expenses and other assets341 2,304 
Intangible assets33,390 31,400 
Goodwill134,909 72,291 
Accounts payable, accrued expenses and accrued compensation(719)(3,794)
Deferred revenue(188)(3,699)
Deferred tax liabilities, net(7,937)(4,118)
Total purchase price allocation$159,976 $98,489 
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination
Acquired intangible assets and their estimated useful lives at the date of acquisition are as follows:
AccuricsAlsid
(dollars in thousands)CostEstimated Useful LifeCostEstimated Useful Life
Acquired technology$33,300 10 years$31,300 7 years
Trade name90 2 years100 1 year
Acquired intangible assets$33,390 $31,400 
Schedule of Goodwill
The changes in the carrying amount of goodwill are as follows:
(in thousands)
Balance at December 31, 2020
$54,414 
Acquired goodwill207,200 
Balance at December 31, 2021
$261,614 
Schedule of Finite-Lived Intangible Assets
Acquired intangible assets subject to amortization are as follows:
December 31, 2021December 31, 2020
Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Acquired technology$81,924 $(10,499)$71,425 $17,325 $(4,224)$13,101 
Trade name390 (279)111 200 (108)92 
$82,314 $(10,778)$71,536 $17,525 $(4,332)$13,193 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
At December 31, 2021, estimated future amortization of intangible assets is as follows:
(in thousands)
Year ending December 31,
2022$9,907 
202310,049 
202410,016 
202510,016 
20269,831 
Thereafter
21,717 
Total
$71,536