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 at Nov. 30, 2013	$ 178.0	$ 4.8	$ 334.6	$ (67.6)	$ (5.2)	$ (88.6)
Net (loss) income	11.5			11.5
Cumulative translation adjustment (net of tax of $.8 million, ($1.1 million), and $2.4 million in 2012, 2013, and 2014, respectively)	(10.5)					(10.5)
Prior service credits (net of tax of $0.9 million, $0.1 million, and $0.1 million for 2012, 2013, and 2014, respectively)	0.2					(0.2)
Net actuarial loss (net of tax of $14.5 million, ($15.2 million), and $18.7 million for 2012, 2013, and 2014, respectively	29.5					(29.5)
Common stock issuance	2.6		3.9		1.3
Treasury Stock, Value, Acquired, Par Value Method	(1.4)				(1.4)
Ending Balance at Nov. 30, 2014	$ 150.5	$ 4.8	338.5	(56.1)	(7.9)	(128.8)
Beginning Balance, shares at Nov. 30, 2013		47.2
Common stock issuance, shares		0.3
Treasury Stock, Shares, Acquired	0.2	(0.2)
Ending Balance, shares at Nov. 30, 2014		47.3
Net (loss) income	$ (17.8)			(17.8)
Cumulative translation adjustment (net of tax of $.8 million, ($1.1 million), and $2.4 million in 2012, 2013, and 2014, respectively)	(19.8)					(19.8)
Prior service credits (net of tax of $0.9 million, $0.1 million, and $0.1 million for 2012, 2013, and 2014, respectively)	0.1					(0.1)
Net actuarial loss (net of tax of $14.5 million, ($15.2 million), and $18.7 million for 2012, 2013, and 2014, respectively	(12.8)					12.8
Common stock issuance	2.1		1.2		0.9
Treasury Stock, Value, Acquired, Par Value Method	(18.6)				(18.6)
Ending Balance at Nov. 30, 2015	$ 109.1	$ 4.8	339.7	(73.9)	(25.6)	(135.9)
Common stock issuance, shares		0.1
Treasury Stock, Shares, Acquired	2.6	(2.6)
Ending Balance, shares at Nov. 30, 2015		44.8
Net (loss) income	$ (0.4)			(0.4)
Cumulative translation adjustment (net of tax of $.8 million, ($1.1 million), and $2.4 million in 2012, 2013, and 2014, respectively)	0.6					0.6
Net actuarial loss (net of tax of $14.5 million, ($15.2 million), and $18.7 million for 2012, 2013, and 2014, respectively	3.2					(3.2)
Common stock issuance	3.7	$ 0.0	1.3		2.4
Treasury Stock, Value, Acquired, Par Value Method					0.0
Ending Balance at Nov. 30, 2016	$ 109.8	$ 4.8	$ 341.0	$ (74.3)	$ (23.2)	$ (138.5)
Common stock issuance, shares		0.3
Treasury Stock, Shares, Acquired		0.0
Ending Balance, shares at Nov. 30, 2016		45.1