Deferred contract costs

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Deferred contract costs

Deferred contract costs

The following table summarizes deferred contract costs activity:

	December 31,
	2020		2021
Balance at the beginning of the year	$	6,314	$	11,525
Capitalization of deferred contract costs	9,724		13,350
Amortization of deferred contract costs	(4,513)		(7,197)
Balance at the end of the year	$	11,525	$	17,678