Restructuring - Additional Information (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 1,100	$ 1,300
Accured Restructure Liability	$ 831	831
Cost Of Subscription And Support Revenue [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		51
Sales And Marketing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		23
Research And Development [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		1,100
General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 130