Leases - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) lease_term	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Operating leases renewal terms (up to)	5 years		5 years
Finance leases renewal terms (up to)	5 years		5 years
Lease term (in years)	3 years		3 years
Duration of autorenewal features			1 year
Number of consecutive lease terms | lease_term			2
Sales and marketing
Lessee, Lease, Description [Line Items]
Amortization expense	$ 600,000	$ 600,000	$ 1,900,000	$ 1,800,000
AviClear Device
Lessee, Lease, Description [Line Items]
Cloud computing arrangement expected contract renewals (in years)	7 years		7 years
Capitalized Cloud Computing Set-up Cost | Other Noncurrent Assets
Lessee, Lease, Description [Line Items]
Capitalized contract costs	$ 3,400,000		$ 3,400,000		$ 3,300,000
Capitalized Cloud Computing Set-up Cost | Sales and marketing
Lessee, Lease, Description [Line Items]
Amortization expense	1,200,000	100,000	3,500,000	100,000
Lease Installment Costs | Other Noncurrent Assets
Lessee, Lease, Description [Line Items]
Capitalized contract costs	2,600,000		2,600,000		$ 1,300,000
Lease Installment Costs | Sales and marketing
Lessee, Lease, Description [Line Items]
Amortization expense	$ 700,000	$ 0	$ 1,700,000	$ 0
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms of operating leases	1 year		1 year
Remaining lease terms of finance leases	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms of operating leases	10 years		10 years
Remaining lease terms of finance leases	10 years		10 years