Revenue Recognition - Revenue by Geographic Location (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenue		$ 119,605	$ 91,603	$ 227,496	$ 169,691
United States
Disaggregation of Revenue [Line Items]
Total revenue		80,924	59,559	149,706	108,109
Other Americas
Disaggregation of Revenue [Line Items]
Total revenue	[1]	3,995	3,048	7,908	5,068
Total Americas
Disaggregation of Revenue [Line Items]
Total revenue		84,919	62,607	157,614	113,177
EMEA
Disaggregation of Revenue [Line Items]
Total revenue	[2],[3]	22,933	19,692	44,693	39,182
APAC
Disaggregation of Revenue [Line Items]
Total revenue	[4]	11,753	9,304	25,189	17,332
United Kingdom
Disaggregation of Revenue [Line Items]
Total revenue		14,800	12,500	28,100	25,100
Netherlands
Disaggregation of Revenue [Line Items]
Total revenue		$ 1,200	$ 600	$ 2,500	$ 1,900

[1] Canada, Latin America and South America

[2] Includes revenues from the United Kingdom of $14.8 million and $12.5 million for the three months ended June 30, 2021 and 2020, respectively, and from the Netherlands of $1.2 million and $0.6 million for the three months ended June 30, 2021 and 2020, respectively. Includes revenues from the United Kingdom of $28.1 million and $25.1 million for the six months ended June 30, 2021 and 2020, respectively, and from the Netherlands of $2.5 million and $1.9 million for the six months ended June 30, 2021 and 2020, respectively.

[3] Europe, the Middle East and Africa (“EMEA”)

[4] Asia-Pacific (“APAC”)