Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 18, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 41,214	$ 41,386
Restaurant Magic
Acquired Finite-Lived Intangible Assets [Line Items]
Tangible assets			$ 1,344
Goodwill			27,773
Total assets			47,517
Accounts payable and accrued expenses			629
Deferred revenue			715
Earn-Out liability			3,340
Consideration paid			42,833
Restaurant Magic | Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets			16,400
Restaurant Magic | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets			1,100
Restaurant Magic | Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets			$ 900