CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Revenues		$ 262,256	$ 232,361
Operating expenses:
Cost of revenues	[1]	76,066	74,432
Research and development		35,426	28,974
Selling, general and administrative	[1]	100,258	90,342
Amortization of intangible assets	[1]	1,502	1,788
Restructuring and acquisition-related			0
Total operating expenses		213,252	195,536
Operating income		49,004	36,825
Interest expense, net		(9,676)	(6,460)
Other income (expense), net		(2,172)	513
Income before income taxes		37,156	30,878
Provision for income taxes		(2,851)	(2,001)
Net income		40,007	32,879
Other comprehensive income (loss):
Foreign currency translation adjustments		(3,265)	3,071
Comprehensive income		$ 36,742	$ 35,950
Earnings per share:
Basic (in dollars per share)		$ 1.38	$ 1.09
Diluted (in dollars per share)		$ 1.32	$ 1.04
Shares used in computing earnings per share:
Basic (in shares)		28,961	30,078
Diluted (in shares)		30,336	31,561
Transactional and Maintenance
Revenues		$ 194,193	$ 170,403
Technology Service
Revenues		40,808	43,128
License
Revenues		$ 27,255	$ 18,830

[1] Cost of revenues and selling, general and administrative expenses exclude the amortization of intangible assets. See Note 4.