Revenue From Contracts With Customers - Summary of Costs to Obtain Customer Contracts (Details) - Cost to Obtain Customer Contracts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Beginning balance	$ 190	$ 80
Additions	379	452
Amortization	(460)	(342)
Ending balance	$ 109	$ 190