Profit Interest Units of SIS Holdings LP (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of activity in PIU awards granted

	Number of units		Weighted- average grant date fair value
Outstanding at December 31, 2019	261,759		$	87.13
Forfeited	(8,375	)		(87.32	)
Outstanding at December 31, 2020	253,384			87.12
Forfeited	(3,348	)		(85.94	)
Outstanding at December 31, 2021	250,036		$	87.14

Schedule of equity based compensation costs

	2021		2020
Cost of revenue	$	504	$	503
Sales and marketing		1,844		2,211
Research and development		359		360
General and administrative		753		1,161
Total	$	3,460	$	4,235