Accumulated Other Comprehensive Income (Loss) (AOCI by Components) (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
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, August 31, 2013			$ (27,176)
Other comprehensive income (loss) before reclassifications			26,692
Amounts reclassified from AOCI			1,358
Other comprehensive income (loss)	8,697	(6,523)	28,050	16,889
Balance, February 28, 2014	874		874
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, August 31, 2013			(27,477)
Other comprehensive income (loss) before reclassifications			28,185
Amounts reclassified from AOCI			0
Other comprehensive income (loss)			28,185
Balance, February 28, 2014	708		708
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, August 31, 2013			3,594
Other comprehensive income (loss) before reclassifications			(2,043)
Amounts reclassified from AOCI			1,362
Other comprehensive income (loss)			(681)
Balance, February 28, 2014	2,913		2,913
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, August 31, 2013			(3,293)
Other comprehensive income (loss) before reclassifications			550
Amounts reclassified from AOCI			(4)
Other comprehensive income (loss)			546
Balance, February 28, 2014	$ (2,747)		$ (2,747)