CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Revenues:
Transactional and maintenance		$ 174,662	$ 153,660
Professional services		42,626	43,543
License		18,033	22,397
Total revenues		235,321	219,600
Operating expenses:
Cost of revenues	[1]	74,359	69,997
Research and development		28,974	26,142
Selling, general and administrative	[1]	90,296	85,214
Amortization of intangible assets	[1]	1,788	3,320
Total operating expenses		195,417	184,673
Operating income		39,904	34,927
Interest expense, net		(6,460)	(6,172)
Other income (expense), net		513	(100)
Income before income taxes		33,957	28,655
Provision for income taxes		6,658	(9,246)
Net income		27,299	37,901
Other comprehensive income (loss):
Foreign currency translation adjustments		3,071	(14,347)
Comprehensive income		$ 30,370	$ 23,554
Earnings per share:
Basic (in dollars per share)		$ 0.91	$ 1.22
Diluted (in dollars per share)		$ 0.86	$ 1.16
Shares used in computing earnings per share:
Basic (in shares)		30,078	30,989
Diluted (in shares)		31,561	32,536

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