Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Concentration Risk [Line Items]
Cash balances on deposit, exceeded balance insured	$ 209,900,000		$ 209,900,000
Allowance for credit losses	(257,000)		(257,000)		$ (273,000)
Advertising costs	4,400,000	$ 4,500,000	13,200,000	$ 15,000,000.0
Selling and marketing expense	4,300,000	4,700,000	12,400,000	14,500,000
Indirect tax liabilities	14,606,000		$ 14,606,000		14,932,000
Matching employer contribution			3.00%
Contributions	100,000	$ 100,000	$ 600,000	$ 300,000
Letter of Credit
Concentration Risk [Line Items]
Restricted cash	$ 1,000,000.0		$ 1,000,000.0		$ 10,000,000
Building
Concentration Risk [Line Items]
Useful life	39 years		39 years
Two Customers | Minimum | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percent)			21.00%
Two Customers | Maximum | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percent)			23.00%
Four Customers | Minimum | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percent)					10.00%
Four Customers | Maximum | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as a percent)					18.00%