Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 73,723	$ 105,250
Medicare
Disaggregation of Revenue [Line Items]
Total revenue	58,963	85,710
Medicare \| Medicare Advantage
Disaggregation of Revenue [Line Items]
Total revenue	54,121	78,130
Medicare \| Medicare Supplement
Disaggregation of Revenue [Line Items]
Total revenue	4,065	6,120
Medicare \| Medicare Part D
Disaggregation of Revenue [Line Items]
Total revenue	777	1,460
Individual and Family
Disaggregation of Revenue [Line Items]
Total revenue	4,006	3,126
Individual and Family \| Non-Qualified Health Plans
Disaggregation of Revenue [Line Items]
Total revenue	2,355	1,610
Individual and Family \| Qualified Health Plans
Disaggregation of Revenue [Line Items]
Total revenue	1,651	1,516
Ancillary
Disaggregation of Revenue [Line Items]
Total revenue	2,422	2,831
Ancillary \| Short-term
Disaggregation of Revenue [Line Items]
Total revenue	984	1,343
Ancillary \| Dental
Disaggregation of Revenue [Line Items]
Total revenue	710	831
Ancillary \| Vision
Disaggregation of Revenue [Line Items]
Total revenue	210	243
Ancillary \| Other
Disaggregation of Revenue [Line Items]
Total revenue	518	414
Small Business
Disaggregation of Revenue [Line Items]
Total revenue	4,873	3,483
Commission Bonus and Other
Disaggregation of Revenue [Line Items]
Total revenue	(2,261)	(1,300)
Total Commission Revenue
Disaggregation of Revenue [Line Items]
Total revenue	68,003	93,850
Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue	5,720	11,400
Other Revenue \| Sponsorship and Advertising Revenue
Disaggregation of Revenue [Line Items]
Total revenue	4,943	10,645
Other Revenue \| Other
Disaggregation of Revenue [Line Items]
Total revenue	$ 777	$ 755