Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net service revenues	$ 554.4	$ 570.7
Cost of services provided	420.8	427.7
Gross profit	133.6	143.0
Selling, general and administrative expense	123.3	130.3
Amortization expense	13.9	13.5
(Loss) from operations	(3.6)	(0.8)
Other income	1.4	0.7
Interest expense	13.6	17.4
(Loss) before income taxes	(15.8)	(17.5)
Income tax benefit	3.8	4.9
Net (loss)	$ (12.0)	$ (12.6)
(Loss) per share:
Basic and diluted	$ (0.11)	$ (0.12)