EARNINGS (LOSS) PER SHARE - Schedule of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income (loss) from continuing operations	$ 27.6	$ 1.9	$ 55.9	$ (18.1)
Loss from discontinued operations	$ 0.0	$ (1.0)	$ 0.0	$ (3.1)
Weighted-average number of shares of ordinary shares - basic (in shares)	145,136,214	115,609,756	145,132,349	115,609,756
Effect of dilutive securities:
Weighted-average number of shares of ordinary shares - diluted (in shares)	146,267,128	115,609,756	146,276,351	115,609,756
Earnings (loss) per ordinary share - basic:
From continuing operations (in USD per share)	$ 0.19	$ 0.02	$ 0.39	$ (0.16)
From discontinued operations (in USD per share)	0.00	(0.01)	0.00	(0.03)
Earnings (loss) per ordinary share - diluted:
From continuing operations (in USD per share)	0.19	0.02	0.38	(0.16)
From discontinued operations (in USD per share)	$ 0.00	$ (0.01)	$ 0.00	$ (0.03)
Restricted Stock Units
Effect of dilutive securities:
Dilutive securities (in shares)	1,092,951	0	1,116,435	0
Stock Options
Effect of dilutive securities:
Dilutive securities (in shares)	37,963	0	27,567	0