Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2013

Quarterly Financial Data [Abstract]

Summary of quarterly results of operations

Quarterly results of operations were (in millions, except per share amounts):

	Fiscal 2013
	Three Months Ended
	September 30		June 30		March 31		December 31
Revenues	$	1,859.8	$	1,692.8	$	1,431.6	$	1,275.1
Gross profit	371.4		349.1		281.2		230.9
Income before income taxes	202.8		205.1		142.1		107.9
Income tax expense	63.3		59.1		31.1		41.6
Net income	139.5		146.0		111.0		66.3
Basic net income per common share	0.43		0.45		0.35		0.21
Diluted net income per common share	0.40		0.42		0.32		0.20

	Fiscal 2012
	Three Months Ended
	September 30			June 30			March 31		December 31
Revenues	$	1,336.2		$	1,150.0		$	961.2	$	906.6
Gross profit	232.5			198.3			164.4		148.6
Income before income taxes	99.2			72.2			42.3		29.2
Income tax (benefit) expense	(0.9		)	(715.6		)	1.7		1.5
Net income	100.1			787.8			40.6		27.7
Basic net income per common share	0.31			2.47			0.13		0.09
Diluted net income per common share	0.30			2.22			0.13		0.09