Condensed Consolidating Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended
	Mar. 07, 2013	Feb. 28, 2013	Nov. 30, 2012	Feb. 29, 2012	Nov. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net Sales		$ 251.7		$ 275.9
Cost of products sold		202.7		215.0
Gross Profit		49.0		60.9
Selling, general and administrative		30.5		29.5
Depreciation and amortization		8.3		8.0
Restructuring and severance		0.8		0.5
Interest expense		8.6		9.5
Deferred financing fees write-off	0.2
(Income) loss from subsidiaries		0		0
Other (income) expense, net		0		(0.8)
Operating Expenses, Total		48.2		46.7
Income (Loss) From Continuing Operations Before Income Taxes		0.8		14.2
Income tax expense (benefit)		0.6	0.6	3.5	3.5
Income From Continuing Operations		0.2		10.7
Income (Loss) from discontinued operations		(0.4)		2.8
Net Income (loss)		(0.2)		13.5
OMNOVA Solutions (Parent)
Condensed Financial Statements, Captions [Line Items]
Net Sales		159.4		178.6
Cost of products sold		127.7		140.1
Gross Profit		31.7		38.5
Selling, general and administrative		21.1		19.3
Depreciation and amortization		4.1		4.1
Restructuring and severance		0.8		0.5
Interest expense		7.0		8.1
(Income) loss from subsidiaries		(0.3)		(4.5)
Other (income) expense, net		(0.8)		(0.7)
Operating Expenses, Total		31.9		26.8
Income (Loss) From Continuing Operations Before Income Taxes		(0.2)		11.7
Income tax expense (benefit)		(0.4)		3.1
Income From Continuing Operations		0.2		8.6
Income (Loss) from discontinued operations		(0.4)		4.9
Net Income (loss)		(0.2)		13.5
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Sales		0		0
Cost of products sold		0		0
Gross Profit		0		0
Selling, general and administrative		0.1		0.4
Depreciation and amortization		0		0
Restructuring and severance		0		0
Interest expense		(0.5)		(0.5)
(Income) loss from subsidiaries		(0.6)		(5.2)
Other (income) expense, net		(0.1)		(0.2)
Operating Expenses, Total		(1.1)		(5.5)
Income (Loss) From Continuing Operations Before Income Taxes		1.1		5.5
Income tax expense (benefit)		0.9		0
Income From Continuing Operations		0.2		5.5
Income (Loss) from discontinued operations		0		(1.0)
Net Income (loss)		0.2		4.5
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Sales		98.8		103.9
Cost of products sold		81.6		81.4
Gross Profit		17.2		22.5
Selling, general and administrative		9.3		9.8
Depreciation and amortization		4.2		3.9
Restructuring and severance		0		0
Interest expense		2.0		2.0
(Income) loss from subsidiaries		0		0
Other (income) expense, net		1.0		0.1
Operating Expenses, Total		16.5		15.8
Income (Loss) From Continuing Operations Before Income Taxes		0.7		6.7
Income tax expense (benefit)		0.1		0.4
Income From Continuing Operations		0.6		6.3
Income (Loss) from discontinued operations		0		(1.1)
Net Income (loss)		0.6		5.2
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Sales		(6.5)		(6.6)
Cost of products sold		(6.6)		(6.5)
Gross Profit		0.1		(0.1)
Selling, general and administrative		0		0
Depreciation and amortization		0		0
Restructuring and severance		0		0
Interest expense		0.1		(0.1)
(Income) loss from subsidiaries		0.9		9.7
Other (income) expense, net		(0.1)		0
Operating Expenses, Total		0.9		9.6
Income (Loss) From Continuing Operations Before Income Taxes		(0.8)		(9.7)
Income tax expense (benefit)		0		0
Income From Continuing Operations		(0.8)		(9.7)
Income (Loss) from discontinued operations		0		0
Net Income (loss)		$ (0.8)		$ (9.7)