Condensed Consolidating Statements of Financial Position (Detail) (USD $) In Millions, unless otherwise specified	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Assets, Current	$ 423.2		$ 402.1
Current Assets
Cash and cash equivalents	134.3		164.9	128.0		143.0
Accounts receivable, net	156.6		123.1
Prepaid Expense and Other Assets, Current	15.3		17.6
Inventories	108.7		88.1
Deferred income taxes - current	8.3		8.4
Property, plant and equipment, net	225.1		226.5
Trademarks, intangibles and other assets, net	159.8		162.5
Deferred income taxes - non-current	47.0		46.9
Due from Related Parties, Noncurrent	0		0
Investments in subsidiaries and intercompany	0		0
Other assets	15.7		16.7
Total Assets	870.8		854.7
Current Liabilities
Loans Payable to Bank Current	4.0		4.6
Accounts payable	102.5		92.1
Accrued payroll and personal property taxes	18.8		20.4
Employee benefit obligations	2.1		2.1
Accrued interest	1.7		1.7
Deferred income taxes - current	0		0
Other current liabilities	9.0		5.8
Total Current Liabilities	138.1		126.7
Long-term debt, excluding current maturities	443.2		444.0
Postretirement benefits other than pensions	6.0		6.5
Pension liabilities	66.7		67.2
Deferred income taxes - non-current	22.6		23.3
Intercompany	0		0
Other liabilities	9.2		9.0
Total Liabilities	685.8		676.7
Shareholders' Equity
Common stock	4.8		4.8
Additional contributed capital	336.5		334.6
Retained earnings (deficit)	(63.0)		(67.6)
Treasury stock	(5.2)		(5.2)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(88.1)	(87.2)	(88.6)	(112.3)	(112.1)	(114.7)
Total Shareholders' Equity	185.0		178.0
Total Liabilities and Shareholders' Equity	870.8		854.7
OMNOVA Solutions (Parent)
Condensed Financial Statements, Captions [Line Items]
Assets, Current	225.1		217.6
Current Assets
Cash and cash equivalents	70.2		102.1	77.3		98.7
Accounts receivable, net	85.6		56.9
Prepaid Expense and Other Assets, Current	3.1		6.8
Inventories	60.0		45.6
Deferred income taxes - current	6.2		6.2
Property, plant and equipment, net	110.0		110.1
Trademarks, intangibles and other assets, net	76.4		76.9
Deferred income taxes - non-current	46.4		46.9
Due from Related Parties, Noncurrent	372.1		386.0
Investments in subsidiaries and intercompany	99.1		134.0
Other assets	10.8		12.0
Total Assets	939.9		983.5
Current Liabilities
Loans Payable to Bank Current	2.0		2.0
Accounts payable	49.8		38.4
Accrued payroll and personal property taxes	10.7		14.5
Employee benefit obligations	2.1		2.1
Accrued interest	1.7		1.7
Deferred income taxes - current	0		0
Other current liabilities	8.9		7.5
Total Current Liabilities	75.2		66.2
Long-term debt, excluding current maturities	443.2		444.0
Postretirement benefits other than pensions	6.0		6.5
Pension liabilities	54.2		55.2
Deferred income taxes - non-current	0		0
Intercompany	168.6		226.1
Other liabilities	7.7		7.5
Total Liabilities	754.9		805.5
Shareholders' Equity
Total Shareholders' Equity	185.0		178.0
Total Liabilities and Shareholders' Equity	939.9		983.5
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Assets, Current	0		0
Current Assets
Cash and cash equivalents	0		0	0		0
Accounts receivable, net	0		0
Prepaid Expense and Other Assets, Current	0		0
Inventories	0		0
Deferred income taxes - current	0		0
Property, plant and equipment, net	0		0
Trademarks, intangibles and other assets, net	0		0
Deferred income taxes - non-current	0		0
Due from Related Parties, Noncurrent	20.5		14.6
Investments in subsidiaries and intercompany	204.1		194.6
Other assets	3.8		3.8
Total Assets	228.4		213.0
Current Liabilities
Loans Payable to Bank Current	0		0
Accounts payable	0.2		0
Accrued payroll and personal property taxes	0		0
Employee benefit obligations	0		0
Accrued interest	0		0
Deferred income taxes - current	0		0
Other current liabilities	0		0.2
Total Current Liabilities	0.2		0.2
Long-term debt, excluding current maturities	0		0
Postretirement benefits other than pensions	0		0
Pension liabilities	0		0
Deferred income taxes - non-current	0		0
Intercompany	118.7		84.2
Other liabilities	0		0
Total Liabilities	118.9		84.4
Shareholders' Equity
Total Shareholders' Equity	109.5		128.6
Total Liabilities and Shareholders' Equity	228.4		213.0
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Assets, Current	200.0		186.2
Current Assets
Cash and cash equivalents	64.1		62.8	50.7		44.3
Accounts receivable, net	71.0		66.2
Prepaid Expense and Other Assets, Current	11.8		10.3
Inventories	50.6		44.1
Deferred income taxes - current	2.5		2.8
Property, plant and equipment, net	115.1		116.4
Trademarks, intangibles and other assets, net	83.4		85.6
Deferred income taxes - non-current	7.2		7.1
Due from Related Parties, Noncurrent	163.5		164.3
Investments in subsidiaries and intercompany	0		0
Other assets	1.1		0.9
Total Assets	570.3		560.5
Current Liabilities
Loans Payable to Bank Current	2.0		2.6
Accounts payable	52.5		53.5
Accrued payroll and personal property taxes	8.1		5.9
Employee benefit obligations	0		0
Accrued interest	0		0
Deferred income taxes - current	0.4		0.6
Other current liabilities	2.8		0
Total Current Liabilities	65.8		62.6
Long-term debt, excluding current maturities	0		0
Postretirement benefits other than pensions	0		0
Pension liabilities	12.5		12.0
Deferred income taxes - non-current	29.3		30.4
Intercompany	257.1		259.4
Other liabilities	1.5		1.5
Total Liabilities	366.2		365.9
Shareholders' Equity
Total Shareholders' Equity	204.1		194.6
Total Liabilities and Shareholders' Equity	570.3		560.5
Eliminations
Condensed Financial Statements, Captions [Line Items]
Assets, Current	(1.9)		(1.7)
Current Assets
Cash and cash equivalents	0		0	0		0
Accounts receivable, net	0		0
Prepaid Expense and Other Assets, Current	0.4		0.5
Inventories	(1.9)		(1.6)
Deferred income taxes - current	(0.4)		(0.6)
Property, plant and equipment, net	0		0
Trademarks, intangibles and other assets, net	0		0
Deferred income taxes - non-current	(6.6)		(7.1)
Due from Related Parties, Noncurrent	(556.1)		(564.9)
Investments in subsidiaries and intercompany	(303.2)		(328.6)
Other assets	0		0
Total Assets	(867.8)		(902.3)
Current Liabilities
Loans Payable to Bank Current	0		0
Accounts payable	0		0.2
Accrued payroll and personal property taxes	0		0
Employee benefit obligations	0		0
Accrued interest	0		0
Deferred income taxes - current	(0.4)		(0.6)
Other current liabilities	(2.7)		(1.9)
Total Current Liabilities	(3.1)		(2.3)
Long-term debt, excluding current maturities	0		0
Postretirement benefits other than pensions	0		0
Pension liabilities	0		0
Deferred income taxes - non-current	(6.7)		(7.1)
Intercompany	(544.4)		(569.7)
Other liabilities	0		0
Total Liabilities	(554.2)		(579.1)
Shareholders' Equity
Total Shareholders' Equity	(313.6)		(323.2)
Total Liabilities and Shareholders' Equity	$ (867.8)		$ (902.3)