Acquisitions Schedule of Purchase Price Allocation (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 1,237,734	$ 1,237,894	$ 1,191,259
Tapestry Technologies
Business Acquisition [Line Items]
Cash and cash equivalents	36
Receivables	3,926
Prepaid expenses	225
Goodwill	27,013
Other intangible assets	16,500
Property and equipment	269
Operating lease right of use assets	934
Other assets	10
Accounts payable	(522)
Accrued salaries and related expenses	(1,142)
Operating lease obligations—current	(487)
Accrued expenses and other current liabilities	(59)
Operating lease obligations—long term	(453)
Net assets acquired and liabilities assumed	46,250
Minerva Engineering
Business Acquisition [Line Items]
Cash and cash equivalents	56
Receivables	4,573
Prepaid expenses	28
Goodwill	19,451
Other intangible assets	11,600
Property and equipment	149
Operating lease right of use assets	968
Other assets	29
Accounts payable	(1,875)
Accrued salaries and related expenses	(784)
Operating lease obligations—current	(384)
Accrued expenses and other current liabilities	(591)
Operating lease obligations—long term	(562)
Net assets acquired and liabilities assumed	$ 32,658