Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance, shares at Nov. 30, 2015		44.8
Beginning Balance at Nov. 30, 2015	$ 109.1	$ 4.8	$ 339.7	$ (73.9)	$ (25.6)	$ (135.9)
Net income (loss)	(0.4)			(0.4)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0.6					0.6
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(3.2)					(3.2)
Common stock issuance, shares		0.3
Stock Issued During Period, Value, New Issues	3.7		1.3		(2.4)
Ending Balance, shares at Nov. 30, 2016		45.1
Ending Balance at Nov. 30, 2016	109.8	$ 4.8	341.0	(74.3)	(23.2)	(138.5)
Net income (loss)	(87.8)			(87.8)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	6.5					6.5
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	6.7					6.7
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	2.5		2.5
Shares Paid for Tax Withholding for Share Based Compensation		(0.3)
Adjustments Related to Tax Withholding for Share-based Compensation	(2.4)		(0.1)		(2.3)
Ending Balance, shares at Nov. 30, 2017		44.8
Ending Balance at Nov. 30, 2017	38.2	$ 4.8	343.4	(159.2)	(25.5)	(125.3)
Cumulative Effect of New Accounting Principle in Period of Adoption	2.9			2.9
Net income (loss)	20.7			20.7
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(9.5)					(9.5)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	12.4					12.4
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	2.8		2.8
Stock Issued During Period, Shares, Other		0.1
Stockholders' Equity, Other	(0.1)		(0.3)		0.2
Ending Balance, shares at Nov. 30, 2018		44.9
Ending Balance at Nov. 30, 2018	57.6	$ 4.8	$ 345.9	(145.4)	$ (25.3)	$ (122.4)
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (6.9)			$ (6.9)