Derivatives And Risk Management (Effective Portion of Derivatives Designated as Cash Flow Hedging Instruments Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	$ (382)	$ 274	$ (1,362)	$ 396
Commodity [Member] | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	(64)	6	(153)	6
Foreign exchange [Member] | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	(2)	10	(233)	61
Foreign exchange [Member] | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	(416)	91	(1,174)	50
Foreign exchange [Member] | SG&A expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	13	66	25	76
Interest rate | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges reclassified from AOCI	$ 87	$ 101	$ 173	$ 203