Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income (loss)		$ 66.4	$ (7.7)	$ 14.0
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation		108.4	105.2	98.9
Amortization of intangible assets		35.8	44.5	51.5
Amortization of financing costs and original issue discount		2.8	3.5	3.7
Loss on debt extinguishment	[1]	0.6	8.3	12.6
Deferred taxes		1.7	(21.5)	(6.6)
Equity-based compensation		20.2	22.1	18.9
Realized gain on hedges		(11.1)	(15.2)	(1.0)
Gain on divestiture		(43.6)	0.0	0.0
Other non-cash activities		(8.6)	(5.3)	(1.7)
Change in operating assets and liabilities:
Accounts receivable		19.9	(52.6)	(6.3)
Unbilled and deferred revenue		22.1	(5.4)	(6.9)
Other operating assets		11.4	17.1	(10.5)
Accounts payable and other operating liabilities		(20.4)	36.9	(59.7)
Net cash provided by operating activities		205.6	129.9	106.9
Cash flows from investing activities:
Purchase of property and equipment		(78.4)	(71.3)	(107.3)
Proceeds from sale of property and equipment		18.1	21.6	7.1
Business acquisitions, net of cash acquired		0.0	(13.8)	(93.1)
Proceeds from divestiture		51.0	0.0	0.0
Other investing activities		3.7	2.1	(0.4)
Net cash (used) by investing activities		(5.6)	(61.4)	(193.7)
Cash flows from financing activities:
Repayments of finance lease obligations		(36.3)	(27.6)	(27.0)
Repayments of term loan		0.0	(459.0)	(1,006.3)
Repayments of receivables financing agreement		(87.3)	(554.5)	(374.4)
Repayments of revolving credit facility		0.0	(33.5)	(165.0)
Proceeds from term loan, net of issuance costs		0.0	0.0	1,180.1
Proceeds from receivables financing agreement, net of issuance costs		0.5	549.5	391.7
Proceeds from revolving credit facility		0.0	33.5	165.0
Debt issuance and prepayment costs		(2.5)	(1.8)	(4.6)
Series A preferred stock dividend		(17.8)	0.0	0.0
Proceeds from issuance of Series A preferred stock, net of issuance costs		0.0	495.0	0.0
Proceeds from issuance of common stock, net of share issuance costs		3.0	1.2	1.6
Repurchase of common stock and distributions		(3.1)	(2.2)	(163.8)
Contingent business acquisition payments		(5.1)	(22.1)	0.0
Increase in book overdrafts		20.1	0.0	0.0
Other financing activities		1.9	(0.1)	(14.1)
Net cash (used) by financing activities		(126.6)	(21.6)	(16.8)
Net change in cash and cash equivalents		73.4	46.9	(103.6)
Cash and cash equivalents, beginning of period		67.0	20.1	123.7
Cash and cash equivalents, end of period		140.4	67.0	20.1
Supplemental Cash Flow Information:
Cash (received) paid for income taxes, net		34.4	(9.8)	17.3
Cash paid for interest		67.7	82.1	48.7
Accrual for property and equipment		50.7	0.0	0.0
Series A Convertible Preferred Stock
Supplemental Cash Flow Information:
Non-cash Series A Preferred Stock dividends		$ 8.9	$ 3.2	$ 0.0

[1] Represents losses on the extinguishment of debt related to Amendments No. 6, No. 7, and No. 8 to the Credit Agreement, in the fiscal years ended September 30, 2022, 2023, and 2024 respectively, and includes accelerated amortization of deferred financing fees and original issue discount as well as fees paid to lenders and third parties.