Stockholder's Equity - Schedule of Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	$ 6,560	$ 6,793	$ 15,529	$ 13,367
Cost of Licensing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation		3		8
Cost of Connected Services
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	188	489	540	617
Cost of Professional Services
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	433	261	1,304	508
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	1,948	3,290	4,923	6,744
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	1,776	1,566	3,366	3,034
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	$ 2,215	$ 1,184	$ 5,396	$ 2,456