CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Total revenues	$ 691,677	$ 498,735	$ 1,203,636	$ 938,703
Operating expenses:
Cost of revenues	91,199	87,630	178,460	174,975
Research and development	53,916	45,037	103,828	90,182
Selling, general and administrative	144,097	120,420	284,834	248,370
Total operating expenses	289,212	253,087	567,122	513,527
Operating income	402,465	245,648	636,514	425,176
Interest expense, net	(44,579)	(31,378)	(86,585)	(60,866)
Other expense, net	(1,857)	(1,254)	(1,969)	(1,165)
Income before income taxes	356,029	213,016	547,960	363,145
Provision for income taxes	91,571	50,401	125,129	48,002
Net income	264,458	162,615	422,831	315,143
Other comprehensive income (loss):
Foreign currency translation adjustments	(3,428)	6,407	(3,495)	(9,647)
Comprehensive income	$ 261,030	$ 169,022	$ 419,336	$ 305,496
Earnings per share:
Basic (in dollars per share)	$ 11.19	$ 6.67	$ 17.86	$ 12.92
Diluted (in dollars per share)	$ 11.14	$ 6.59	$ 17.73	$ 12.73
Shares used in computing earnings per share:
Basic (in shares)	23,628	24,389	23,676	24,383
Diluted (in shares)	23,748	24,685	23,854	24,756
On-premises and SaaS software
Total revenues	$ 199,231	$ 183,826	$ 387,452	$ 369,837
Professional services
Total revenues	17,473	17,870	36,677	36,152
Scores
Total revenues	$ 474,973	$ 297,039	$ 779,507	$ 532,714