Segment Information (Tables)

9 Months Ended

Jul. 31, 2018

Segment Reporting [Abstract]

Schedule of Financial Information by Reportable Segment

Financial Information by Reportable Segment

	Three Months Ended July 31,						Nine Months Ended July 31,
(in millions)	2018			2017			2018			2017
Revenues
Business & Industry	$	735.2		$	652.6		$	2,180.5		$	1,945.6
Aviation	256.8			258.9			758.3			722.9
Technology & Manufacturing	230.8			161.5			690.3			494.4
Education	210.9			67.3			623.5			199.5
Technical Solutions	121.6			106.7			334.1			325.2
Healthcare	69.1			59.3			206.7			181.6
Government Services	—			12.3			—			86.5
	$	1,624.3		$	1,318.4		$	4,793.5		$	3,955.6
Operating profit (loss)
Business & Industry	$	38.9		$	37.3		$	111.0		$	100.4
Aviation	9.7			5.4			20.6			16.8
Technology & Manufacturing	16.9			11.0			49.8			35.8
Education	12.0			3.9			31.8			11.1
Technical Solutions	11.9			9.4			24.9			27.5
Healthcare	2.5			2.8			7.9			7.7
Government Services	—			1.7			(0.8		)	21.8
Corporate	(42.7		)	(47.5		)	(127.3		)	(118.5		)
Adjustment for income from unconsolidated affiliates, net, included in Aviation and Government Services	(0.9		)	(1.0		)	(2.5		)	(3.4		)
Adjustment for tax deductions for energy efficient government buildings, included in Technical Solutions	(0.3		)	(0.4		)	(2.6		)	(1.8		)
	48.1			22.6			112.9			97.4
Income from unconsolidated affiliates, net	1.0			1.2			2.5			3.6
Interest expense	(12.9		)	(2.8		)	(41.0		)	(9.1		)
Income from continuing operations before income taxes	$	36.1		$	21.0		$	74.4		$	91.9