Other Comprehensive Income, Text (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance			$ 64,156	$ 56,063
Other comprehensive income (loss), before reclassification			(54,730)	8,057
Amounts reclassified from accumulated other comprehensive income			(37,365)	(433)
Ending balance	(27,939)	63,687	(27,939)	63,687
Other Comprehensive Income (Loss), Tax [Abstract]
Net investment hedge translation adjustments	(158)	787	(8,125)	1,525
Long-term intercompany loan settlements	(61)	(1,176)	489	667
Cash flow hedges	352	84	(245)	24
Other income tax adjustments and currency translation	117	56	151	6
Income tax benefit (expense) related to items of other comprehensive income	(250)us-gaap_OtherComprehensiveIncomeLossTax	249us-gaap_OtherComprehensiveIncomeLossTax	7,730us-gaap_OtherComprehensiveIncomeLossTax	(2,222)us-gaap_OtherComprehensiveIncomeLossTax
Cash flow hedges
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance			(12)	99
Other comprehensive income (loss), before reclassification			927	(18)
Amounts reclassified from accumulated other comprehensive income			(337)	(82)
Ending balance	578	(1)	578	(1)
Unamortized gain on post-retirement plans
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance			4,854	1,853
Other comprehensive income (loss), before reclassification			1,639	(41)
Amounts reclassified from accumulated other comprehensive income			(2,331)	(351)
Ending balance	4,162	1,461	4,162	1,461
Foreign currency translation adjustments
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance			59,314	54,111
Other comprehensive income (loss), before reclassification			(57,296)	8,116
Amounts reclassified from accumulated other comprehensive income			(34,697)	0
Ending balance	$ (32,679)	$ 62,227	$ (32,679)	$ 62,227

Other Comprehensive Income Tax Other Adjustments

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Tax effect of current period adjustment resulting from gains and losses on intercompany foreign currency transactions that are of a long-term-investment nature, that is, settlement is not planned or anticipated in the foreseeable future. Applies when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting entity's financial statements. Reported in equity as part of accumulated other comprehensive income.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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Tax effect of current period adjustment resulting from gains and losses on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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