CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Transactional and maintenance		$ 195,491	$ 166,695	$ 565,348	$ 481,604
Professional services		43,209	43,871	131,913	128,698
License		20,805	20,420	55,423	68,662
Total revenues		259,505	230,986	752,684	678,964
Operating expenses:
Cost of revenues	[1]	78,390	69,793	231,268	211,921
Research and development		32,483	27,839	93,976	80,644
Selling, general and administrative	[1]	98,685	84,089	286,038	255,534
Amortization of intangible assets	[1]	1,571	3,365	5,043	9,997
Restructuring and acquisition-related		0	4,471	0	4,471
Total operating expenses		211,129	189,557	616,325	562,567
Operating income		48,376	41,429	136,359	116,397
Interest expense, net		(8,223)	(6,653)	(21,799)	(19,403)
Other income, net		1,588	555	1,940	128
Income before income taxes		41,741	35,331	116,500	97,122
Provision for income taxes		9,380	10,104	24,565	8,910
Net income		32,361	25,227	91,935	88,212
Other comprehensive income (loss):
Foreign currency translation adjustments		(18,796)	10,395	(6,600)	2,137
Comprehensive income		$ 13,565	$ 35,622	$ 85,335	$ 90,349
Earnings per share:
Basic (in dollars per share)		$ 1.09	$ 0.82	$ 3.07	$ 2.85
Diluted (in dollars per share)		$ 1.04	$ 0.78	$ 2.93	$ 2.73
Shares used in computing earnings per share:
Basic (in shares)		29,708	30,914	29,924	30,973
Diluted (in shares)		31,161	32,224	31,341	32,340

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