Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Net service revenues	$ 717.6	$ 708.3	$ 2,035.3	$ 1,970.0
Cost of services provided	565.7	537.4	1,631.4	1,524.8
Gross profit	151.9	170.9	403.9	445.2
Selling, general and administrative expense	114.5	106.2	345.9	343.5
Amortization expense	5.1	7.1	16.7	22.3
Income from operations	32.3	57.6	41.3	79.4
Other expense (income)	9.0	(0.7)	8.9	0.1
Interest expense, net	14.9	13.4	42.1	40.3
Income (loss) before income taxes	8.4	44.9	(9.7)	39.0
Income tax expense (benefit)	2.3	12.6	(2.3)	10.7
Net income (loss)	6.1	32.3	(7.4)	28.3
Less: Dividends on Series A convertible preferred shares	8.9	8.9	26.8	26.8
Net (loss) income attributable to common stockholders	$ (2.8)	$ 23.4	$ (34.2)	$ 1.5
Earnings (loss) per share:
Basic (loss) earnings per share	$ (0.03)	$ 0.16	$ (0.36)	$ 0.01
Diluted earnings (loss) per share	$ (0.03)	$ 0.15	$ (0.36)	$ 0.01