Segment Information - Segment Results (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 482.0	$ 448.3	$ 1,356.5	$ 1,312.2
Adjusted EBITDA	113.7	104.2	270.7	268.5
Depreciation and amortization	28.1	26.6	81.5	79.3
Impairment charges	0.1	3.2	0.1	3.2
Capital expenditures	67.9	34.8	163.1	103.7
Operating Segments | DPS
Segment Reporting Information [Line Items]
Revenues	309.1	287.6	855.0	871.7
Adjusted EBITDA	87.8	77.5	215.5	224.5
Depreciation and amortization	15.5	15.0	45.2	45.6
Impairment charges	0.0	0.0	0.0	0.0
Capital expenditures	42.9	22.4	99.6	77.8
Operating Segments | PDS
Segment Reporting Information [Line Items]
Revenues	57.0	54.0	158.9	147.5
Adjusted EBITDA	20.1	19.5	50.6	51.9
Depreciation and amortization	1.7	1.3	4.2	3.3
Impairment charges	0.0	0.0	0.0	0.0
Capital expenditures	5.0	9.2	20.6	11.5
Operating Segments | DSS
Segment Reporting Information [Line Items]
Revenues	115.9	91.7	342.7	256.8
Adjusted EBITDA	31.1	20.8	76.7	37.8
Depreciation and amortization	10.5	8.0	30.6	21.5
Impairment charges	0.1	3.2	0.1	3.2
Capital expenditures	13.6	5.3	29.9	12.8
Other | Other
Segment Reporting Information [Line Items]
Revenues	0.0	30.9	0.0	100.3
Adjusted EBITDA	(25.3)	(13.6)	(72.1)	(45.7)
Depreciation and amortization	0.4	2.3	1.5	8.9
Impairment charges	0.0	0.0	0.0	0.0
Capital expenditures	6.4	(2.1)	13.0	1.6
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ 0.0	$ (15.9)	$ (0.1)	$ (64.1)