Description of Business and Basis of Presentation Narrative (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2021	Aug. 08, 2018
Affiliated Entity
Business Acquisition [Line Items]
Maximum commitment available on promissory note		$ 125,000
OpenNMS | Chief Executive Officer
Business Acquisition [Line Items]
Outstanding shares purchased (in shares)	241,485
OpenNMS Assignment
Business Acquisition [Line Items]
Remaining percentage of voting interest acquired	9.00%