Acquisitions - Digita Security LLC (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended				12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021		Jun. 30, 2020	[2]	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Increase (decrease) in fair value of contingent consideration		$ 300	$ 4,237	[1]	$ (3,700)		$ (1,000)	$ 200
Digita Security LLC
Business Acquisition [Line Items]
Maximum contingent consideration								$ 15,000
Cash consideration	$ 4,200
Increase (decrease) in fair value of contingent consideration	4,000		4,300
Contingent consideration recognized	8,300		8,300				$ 8,200
Digita Security LLC | Accrued Liabilities
Business Acquisition [Line Items]
Contingent consideration recognized	3,400		3,400
Digita Security LLC | Other Liabilities
Business Acquisition [Line Items]
Contingent consideration recognized	$ 4,900		$ 4,900

[1] Includes the three months ended March 31, 2021, which has been revised to correct immaterial errors. See Note 1 for more information.

[2] Certain prior period amounts have been revised to correct immaterial errors. See Note 1 for more information.