CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Total revenues	$ 433,809	$ 380,266	$ 815,868	$ 725,136
Operating expenses:
Cost of revenues	86,946	79,806	170,407	156,375
Research and development	40,880	40,266	83,515	76,899
Selling, general and administrative	110,867	100,158	215,196	193,153
Amortization of intangible assets	275	275	550	550
Gain on product line asset sale	0	0	0	(1,941)
Total operating expenses	238,968	220,505	469,668	425,036
Operating income	194,841	159,761	346,200	300,100
Interest expense, net	(26,093)	(23,897)	(50,255)	(46,697)
Other income, net	3,986	1,605	7,379	1,969
Income before income taxes	172,734	137,469	303,324	255,372
Provision for income taxes	42,935	35,919	52,460	56,179
Net income	129,799	101,550	250,864	199,193
Other comprehensive income (loss):
Foreign currency translation adjustments	(4,157)	6,552	4,546	24,933
Comprehensive income	$ 125,642	$ 108,102	$ 255,410	$ 224,126
Earnings per share:
Basic (in dollars per share)	$ 5.23	$ 4.04	$ 10.12	$ 7.94
Diluted (in dollars per share)	$ 5.16	$ 4.00	$ 9.96	$ 7.83
Shares used in computing earnings per share:
Basic (in shares)	24,819	25,116	24,791	25,080
Diluted (in shares)	25,154	25,419	25,186	25,431
On-premises and SaaS software
Total revenues	$ 177,180	$ 154,584	$ 345,848	$ 299,144
Professional services
Total revenues	19,744	27,175	41,023	49,497
Scores
Total revenues	$ 236,885	$ 198,507	$ 428,997	$ 376,495