Deferred Revenue from Membership Upgrades and Deferred Commission Expense (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning	$ 229,301
Revenue recognized from membership upgrades	(10,054)	$ (12,170)
Net increase (decrease) in deferred revenue	5,630	26,697
Deferred revenue, ending	224,877
Deferred Commissions Expense
Movement in Deferred Sales Inducements [Roll Forward]
Deferred commission expense, beginning	56,516	53,641
Deferred commission expense	5,563	5,806
Commission expense recognized	(3,549)	(3,397)
Net increase in deferred commission expense	2,014	2,409
Deferred commission expense, ending	58,530	56,050
Membership Subscription
Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning	218,164	206,625
Deferred membership upgrade revenue	5,711	26,404
Revenue recognized from membership upgrades	(10,054)	(12,170)
Net increase (decrease) in deferred revenue	(4,343)	14,234
Deferred revenue, ending	$ 213,821	$ 220,859