Revenue

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue

(4) Revenue

Revenues are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2022		2021		2022
	(in thousands)
Travel	$	28,503	$	48,136	$	56,290	$	97,909
Subscription		23,719		35,562		45,127		67,728
Other		64		—		149		134
Total	$	52,286	$	83,698	$	101,566	$	165,771

The Company has recognized assets and liabilities related to contracts with customers as follows:

	December 31,		June 30,
	2021		2022
	(in thousands)
			(As Restated)
Assets:
Accounts receivable, net	$	2,389	$	1,776
Liabilities:
Deferred revenue, current and long term	$	191,263	$	191,622