Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net service revenues	$ 591.8	$ 554.4
Cost of services provided	451.9	420.8
Gross profit	139.9	133.6
Selling, general and administrative expense	134.9	123.3
Amortization expense	13.4	13.9
(Loss) from operations	(8.4)	(3.6)
Other (expense) income	0.7	1.4
Interest expense	9.7	13.6
(Loss) before income taxes	(17.4)	(15.8)
Income tax benefit	4.6	3.8
Net (loss)	$ (12.8)	$ (12.0)
(Loss) per share:
Basic and Diluted	$ (0.12)	$ (0.11)