CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Transactional and maintenance		$ 605,919	$ 564,232	$ 527,563
Professional services		169,738	151,773	149,834
License		105,699	122,776	111,588
Total revenues		881,356	838,781	788,985
Operating expenses:
Cost of revenues	[1]	265,173	270,535	249,281
Research and development		103,669	98,824	83,435
Selling, general and administrative	[1]	328,940	300,002	278,203
Amortization of intangible assets	[1]	13,982	13,673	11,917
Restructuring and acquisition-related		0	18,242	4,281
Total operating expenses		711,764	701,276	627,117
Operating income		169,592	137,505	161,868
Interest expense, net		(26,633)	(29,150)	(28,550)
Other income (expense), net		1,610	883	(187)
Income before income taxes		144,569	109,238	133,131
Provision for income taxes		35,121	22,736	38,252
Net income		109,448	86,502	94,879
Other comprehensive loss:
Foreign currency translation adjustments		(26,296)	(27,526)	(2,281)
Comprehensive income		$ 83,152	$ 58,976	$ 92,598
Basic earnings per share (in dollars per share)		$ 3.52	$ 2.75	$ 2.80
Shares used in computing basic earnings per share (in shares)		31,129	31,402	33,870
Diluted earnings per share (in dollars per share)		$ 3.39	$ 2.65	$ 2.72
Shares used in computing diluted earnings per share (in shares)		32,308	32,609	34,864

[1] Cost of revenues and selling, general and administrative expenses exclude the amortization of intangible assets. See Note 7.