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Debt and Leases Debt (Details) (USD $) In Thousands, unless otherwise specified | Jul. 31, 2013
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Debt Instrument [Line Items] |
Debt and Capital Leases, minimum payment due in less than 12 months | $ 403
Debt and Capital Leases, Future Minimum Payments, Due in Two Years | 309
Debt and Capital Leases, Future Minimum Payments, Due in Three Years | 277
Debt and Capital Leases, Future Minimum Payments, Due in Four Years | 256
Debt and Capital Leases, Future Minimum Payments, Due in Five Years | 40,410
Debt and Capital Leases, Future Minimum Payments, Due Thereafter | 4,424
Debt and Capital Leases, Future Minimum Payments Due | $ 46,079

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