CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2012
Revenues:
Transactional and maintenance	$ 527,563		$ 514,304		$ 466,175
Professional services	149,834		135,194		124,971
License	111,588		93,946		85,277
Total revenues	788,985		743,444		676,423
Operating expenses:
Cost of revenues	249,281	[1]	229,468	[1]	197,947	[1]
Research and development	83,435		66,967		59,527
Selling, general and administrative	278,203	[1]	268,395	[1]	238,522	[1]
Amortization of intangible assets	11,917	[1]	13,535	[1]	6,944	[1]
Restructuring and acquisition-related	4,281		3,486		5,125
Total operating expenses	627,117		581,851		508,065
Operating income	161,868		161,593		168,358
Interest expense, net	(28,550)		(30,227)		(31,417)
Other income (expense), net	(187)		618		(698)
Income before income taxes	133,131		131,984		136,243
Provision for income taxes	38,252		41,889		44,239
Net income	94,879		90,095		92,004
Other comprehensive income (loss):
Unrealized losses on investments, net of tax benefit of $3 for the years ended September 30, 2012	0		0		(4)
Foreign currency translation adjustments	(2,281)		(5,100)		5,905
Comprehensive income	$ 92,598		$ 84,995		$ 97,905
Basic earnings per share (in dollars per share)	$ 2.80		$ 2.55		$ 2.64
Shares used in computing basic earnings per share (shares)	33,870		35,332		34,909
Diluted earnings per share (in dollars per share)	$ 2.72		$ 2.48		$ 2.55
Shares used in computing diluted earnings per share (shares)	34,864		36,292		36,063

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