CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Total revenues	$ 86,280	$ 98,662	$ 180,706	$ 192,305
Cost of revenues:
Amortization of intangible assets	897	1,879	2,776	3,758
Total cost of revenues	24,306	26,224	48,533	53,112
Gross profit	61,974	72,438	132,173	139,193
Operating expenses:
Research and development	29,976	28,864	55,768	52,995
Sales and marketing	8,309	9,555	14,188	18,563
General and administrative	13,800	12,956	21,327	25,390
Amortization of intangible assets	3,135	3,183	6,289	6,341
Restructuring and other costs, net	474	537	5,389	1,017
Total operating expenses	55,694	55,095	102,961	104,306
Income from operations	6,280	17,343	29,212	34,887
Interest income	83	16	173	34
Interest expense	(3,360)	(3,476)	(6,787)	(7,275)
Other income (expense), net	(34)	3,496	(286)	1,259
Income before income taxes	2,969	17,379	22,312	28,905
Provision for (benefit from) income taxes	3,445	6,216	3,744	(3,199)
Net (loss) income	$ (476)	$ 11,163	$ 18,568	$ 32,104
Net (loss) income per share:
Basic	$ (0.01)	$ 0.30	$ 0.48	$ 0.85
Diluted	$ (0.01)	$ 0.28	$ 0.47	$ 0.82
Weighted-average common share outstanding:
Basic	39,189	37,743	39,013	37,583
Diluted	39,189	39,177	39,586	43,730
License
Revenues:
Total revenues	$ 46,308	$ 54,371	$ 93,158	$ 100,785
Cost of revenues:
Total cost of revenues	386	1,181	1,107	1,855
Connected Services
Revenues:
Total revenues	19,326	27,736	47,485	53,666
Cost of revenues:
Total cost of revenues	5,651	6,839	11,375	13,852
Professional Services
Revenues:
Total revenues	20,646	16,555	40,063	37,854
Cost of revenues:
Total cost of revenues	$ 17,372	$ 16,325	$ 33,275	$ 33,647