Realignment Costs - Schedule of Realignment Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Realignment costs	$ 9,943	$ (49)	$ 10,012	$ (492)
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Realignment costs	1,598	(12)	1,598	(236)
Cost of Sales [Member] \| Subscriptions and licenses
Restructuring Cost and Reserve [Line Items]
Realignment costs	50	0	50	(51)
Cost of Sales [Member] \| Services
Restructuring Cost and Reserve [Line Items]
Realignment costs	1,548	(12)	1,548	(185)
Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Realignment costs	5,183	0	5,183	(263)
General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Realignment costs	2,321	0	2,321	86
Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Realignment costs	8,345	(37)	8,414	(256)
Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Realignment costs	$ 841	$ (37)	$ 910	$ (79)