Business Acquisitions - Dextro, Inc. Acquisition (Details) - USD ($) $ in Thousands	Feb. 08, 2017	Dec. 31, 2019	Dec. 31, 2018
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill		$ 25,013	$ 24,981
Dextro, Inc.
Business Acquisition [Line Items]
Total purchase price	$ 7,500
Payments to acquire businesses, net	7,500
Contingent liability	1,000
Additional contingent consideration arrangements	$ 1,400
Intangible assets, weighted average useful life	3 years 4 months 24 days
Incurred and expensed costs	$ 200
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable	12
Property and equipment	46
Developed technology	5,800
Goodwill	2,703
Deferred income tax liabilities, net	(1,074)
Total purchase price	$ (7,487)