Employee Benefit Plans (Fair Value Of Assets Held By U.S. Pension Plans By Asset Category) (Details) (U.S. Assets [Member], USD $)
In Thousands |
Jul. 31, 2011
|
Jul. 31, 2010
|
Jul. 31, 2009
|
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Defined benefit plan, fair value of plan assets | $ 265,300 | $ 232,500 | |
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
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Defined benefit plan, fair value of plan assets | 101,700 | 66,700 | |
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Cash [Member]
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Defined benefit plan, fair value of plan assets | 300 | 900 | |
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Global Equity Securities [Member]
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Defined benefit plan, fair value of plan assets | 64,800 | 48,700 | |
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Private Equity [Member]
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Defined benefit plan, fair value of plan assets | |||
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Absolute Return [Member]
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Defined benefit plan, fair value of plan assets | |||
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Real Assets [Member]
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Defined benefit plan, fair value of plan assets | |||
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Fixed Income Securities [Member]
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Defined benefit plan, fair value of plan assets | 36,600 | 17,100 | |
Significant Observable Inputs (Level 2) [Member]
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Defined benefit plan, fair value of plan assets | 76,300 | 99,200 | |
Significant Observable Inputs (Level 2) [Member] | Cash [Member]
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Defined benefit plan, fair value of plan assets | |||
Significant Observable Inputs (Level 2) [Member] | Global Equity Securities [Member]
|
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Defined benefit plan, fair value of plan assets | 56,200 | 50,200 | |
Significant Observable Inputs (Level 2) [Member] | Private Equity [Member]
|
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Defined benefit plan, fair value of plan assets | |||
Significant Observable Inputs (Level 2) [Member] | Absolute Return [Member]
|
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Defined benefit plan, fair value of plan assets | 20,100 | 39,400 | |
Significant Observable Inputs (Level 2) [Member] | Real Assets [Member]
|
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Defined benefit plan, fair value of plan assets | 9,600 | ||
Significant Observable Inputs (Level 2) [Member] | Fixed Income Securities [Member]
|
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Defined benefit plan, fair value of plan assets | |||
Significant Unobservable Inputs (Level 3) [Member]
|
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Defined benefit plan, fair value of plan assets | 87,300 | 66,600 | 71,000 |
Significant Unobservable Inputs (Level 3) [Member] | Cash [Member]
|
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Defined benefit plan, fair value of plan assets | |||
Significant Unobservable Inputs (Level 3) [Member] | Global Equity Securities [Member]
|
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Defined benefit plan, fair value of plan assets | 300 | 2,400 | 2,700 |
Significant Unobservable Inputs (Level 3) [Member] | Private Equity [Member]
|
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Defined benefit plan, fair value of plan assets | 17,600 | 14,800 | 11,400 |
Significant Unobservable Inputs (Level 3) [Member] | Absolute Return [Member]
|
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Defined benefit plan, fair value of plan assets | 31,400 | 33,100 | 41,400 |
Significant Unobservable Inputs (Level 3) [Member] | Real Assets [Member]
|
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Defined benefit plan, fair value of plan assets | 38,000 | 16,300 | 15,500 |
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities [Member]
|
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Defined benefit plan, fair value of plan assets | |||
Cash [Member]
|
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Defined benefit plan, fair value of plan assets | 300 | 900 | |
Global Equity Securities [Member]
|
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Defined benefit plan, fair value of plan assets | 121,300 | 101,300 | |
Private Equity [Member]
|
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Defined benefit plan, fair value of plan assets | 17,600 | 14,800 | |
Absolute Return [Member]
|
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Defined benefit plan, fair value of plan assets | 51,500 | 72,500 | |
Real Assets [Member]
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Defined benefit plan, fair value of plan assets | 38,000 | 25,900 | |
Fixed Income Securities [Member]
|
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Defined benefit plan, fair value of plan assets | $ 36,600 | $ 17,100 |