Company Overview and Basis of Presentation -Termination of Proposed Merger with Zendesk - Additional Information (Details) - Momentive Global Inc. - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Condensed Financial Statements, Captions [Line Items]
Business Combination, Acquisition Related Costs	$ 5.4	$ 11.9
Cost of Sales
Condensed Financial Statements, Captions [Line Items]
Business Combination, Acquisition Related Costs	0.3	0.6
Research and development
Condensed Financial Statements, Captions [Line Items]
Business Combination, Acquisition Related Costs	1.6	3.4
Sales and marketing
Condensed Financial Statements, Captions [Line Items]
Business Combination, Acquisition Related Costs	1.4	3.1
General and Administrative Expense
Condensed Financial Statements, Captions [Line Items]
Business Combination, Acquisition Related Costs	$ 2.1	$ 4.8