Supplemental Guarantor Condensed Consolidating Financial Statements - Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Net Sales:
External sales	$ 546.2	$ 486.7	$ 1,120.9	$ 967.8
Intercompany sales	0	0	0	0
Total Sales	546.2	486.7	1,120.9	967.8
Cost of Products Sold	331.0	297.0	668.6	588.6
Gross Profit	215.2	189.7	452.3	379.2
Selling, Distribution, and Administrative Expenses	157.0	144.3	316.7	284.9
Intercompany charges	0	0	0	0
Special Charge	(0.2)	0.3	(0.2)	1.0
Operating Profit	58.4	45.1	135.8	93.3
Interest expense (income), net	8.0	7.8	16.0	15.5
Equity earnings in subsidiaries	0	0	0	0
Miscellaneous (income) expense, net	0.1	0.1	0.7	0.2
Income before Provision for Income Taxes	50.3	37.2	119.1	77.6
Provision for Income Taxes	17.6	12.5	41.9	26.8
Net Income	32.7	24.7	77.2	50.8
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	(1.3)	(0.6)	1.0	0.7
Defined benefit pension plans, net of tax	0.6	1.1	1.2	(1.0)
Other Comprehensive Income/(Expense), net of tax	(0.7)	0.5	2.2	(0.3)
Comprehensive Income	32.0	25.2	79.4	50.5
Parent
Net Sales:
External sales	0	0	0	0
Intercompany sales	0	0	0	0
Total Sales	0	0	0	0
Cost of Products Sold	0	0	0	0
Gross Profit	0	0	0	0
Selling, Distribution, and Administrative Expenses	6.8	6.5	13.8	14.2
Intercompany charges	(0.8)	(0.8)	(1.6)	(1.7)
Special Charge	0	0	0	0
Operating Profit	(6.0)	(5.7)	(12.2)	(12.5)
Interest expense (income), net	2.5	2.3	5.0	4.6
Equity earnings in subsidiaries	(38.2)	(29.9)	(88.3)	(61.3)
Miscellaneous (income) expense, net	0	0	0	0
Income before Provision for Income Taxes	29.7	21.9	71.1	44.2
Provision for Income Taxes	(3.0)	(2.8)	(6.1)	(6.6)
Net Income	32.7	24.7	77.2	50.8
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	(1.3)	(0.6)	1.0	0.7
Defined benefit pension plans, net of tax	0.6	1.1	1.2	(1.0)
Other Comprehensive Income/(Expense), net of tax	(0.7)	0.5	2.2	(0.3)
Comprehensive Income	32.0	25.2	79.4	50.5
Subsidiary Issuer
Net Sales:
External sales	484.3	429.0	996.3	851.8
Intercompany sales	0	0	0	0
Total Sales	484.3	429.0	996.3	851.8
Cost of Products Sold	288.1	256.6	583.4	511.5
Gross Profit	196.2	172.4	412.9	340.3
Selling, Distribution, and Administrative Expenses	139.7	129.2	282.2	252.2
Intercompany charges	0.4	0.5	0.8	1.1
Special Charge	(0.2)	0.3	(0.2)	0.7
Operating Profit	56.3	42.4	130.1	86.3
Interest expense (income), net	5.5	5.6	11.0	11.1
Equity earnings in subsidiaries	(1.7)	(1.6)	(3.0)	(5.5)
Miscellaneous (income) expense, net	0.1	0.6	0.1	0.4
Income before Provision for Income Taxes	52.4	37.8	122.0	80.3
Provision for Income Taxes	17.2	11.9	41.7	26.2
Net Income	35.2	25.9	80.3	54.1
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	(1.3)	(0.6)	1.0	0.7
Defined benefit pension plans, net of tax	0.3	0.7	0.6	1.4
Other Comprehensive Income/(Expense), net of tax	(1.0)	0.1	1.6	2.1
Comprehensive Income	34.2	26.0	81.9	56.2
Subsidiary Guarantor
Net Sales:
External sales	0	0	0	0
Intercompany sales	8.7	7.5	17.4	14.8
Total Sales	8.7	7.5	17.4	14.8
Cost of Products Sold	0	0	0	0
Gross Profit	8.7	7.5	17.4	14.8
Selling, Distribution, and Administrative Expenses	1.4	0.7	2.1	1.5
Intercompany charges	0	0	0	0
Special Charge	0	0	0	0
Operating Profit	7.3	6.8	15.3	13.3
Interest expense (income), net	0	0	0	0
Equity earnings in subsidiaries	0	0	0	0
Miscellaneous (income) expense, net	0	0	0	0
Income before Provision for Income Taxes	7.3	6.8	15.3	13.3
Provision for Income Taxes	2.9	2.7	6.0	5.3
Net Income	4.4	4.1	9.3	8.0
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	0	0	0	0
Defined benefit pension plans, net of tax	0	0	0	0
Other Comprehensive Income/(Expense), net of tax	0	0	0	0
Comprehensive Income	4.4	4.1	9.3	8.0
Non- Guarantors
Net Sales:
External sales	61.9	57.7	124.6	116.0
Intercompany sales	19.2	19.9	42.7	43.0
Total Sales	81.1	77.6	167.3	159.0
Cost of Products Sold	61.5	60.3	126.1	120.1
Gross Profit	19.6	17.3	41.2	38.9
Selling, Distribution, and Administrative Expenses	18.4	15.4	37.8	31.8
Intercompany charges	0.4	0.3	0.8	0.6
Special Charge	0	0	0	0.3
Operating Profit	0.8	1.6	2.6	6.2
Interest expense (income), net	0	(0.1)	0	(0.2)
Equity earnings in subsidiaries	0	0	0	0.1
Miscellaneous (income) expense, net	(1.1)	(0.5)	(0.5)	(0.2)
Income before Provision for Income Taxes	1.9	2.2	3.1	6.5
Provision for Income Taxes	0.5	0.7	0.3	1.9
Net Income	1.4	1.5	2.8	4.6
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	0	0	0	0
Defined benefit pension plans, net of tax	0.2	0.3	0.4	0.7
Other Comprehensive Income/(Expense), net of tax	0.2	0.3	0.4	0.7
Comprehensive Income	1.6	1.8	3.2	5.3
Eliminations
Net Sales:
External sales	0	0	0	0
Intercompany sales	(27.9)	(27.4)	(60.1)	(57.8)
Total Sales	(27.9)	(27.4)	(60.1)	(57.8)
Cost of Products Sold	(18.6)	(19.9)	(40.9)	(43.0)
Gross Profit	(9.3)	(7.5)	(19.2)	(14.8)
Selling, Distribution, and Administrative Expenses	(9.3)	(7.5)	(19.2)	(14.8)
Intercompany charges	0	0	0	0
Special Charge	0	0	0	0
Operating Profit	0	0	0	0
Interest expense (income), net	0	0	0	0
Equity earnings in subsidiaries	39.9	31.5	91.3	66.7
Miscellaneous (income) expense, net	1.1	0	1.1	0
Income before Provision for Income Taxes	(41.0)	(31.5)	(92.4)	(66.7)
Provision for Income Taxes	0	0	0	0
Net Income	(41.0)	(31.5)	(92.4)	(66.7)
Other Comprehensive Income/(Expense) Items:
Foreign currency translation adjustments	1.3	0.6	(1.0)	(0.7)
Defined benefit pension plans, net of tax	(0.5)	(1.0)	(1.0)	(2.1)
Other Comprehensive Income/(Expense), net of tax	0.8	(0.4)	(2.0)	(2.8)
Comprehensive Income	$ (40.2)	$ (31.9)	$ (94.4)	$ (69.5)