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Sale of Non-United States Accounts Receivable - Additional Information (Detail) - 3 months ended Jan. 31, 2018 | USD ($) | EUR (€) | SGD
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Finance Receivable Transferred To Held For Sale [Line Items] |  |  |
Minimum percentage of eligible receivables related with bank funds initial purchase price | 75.00% |  |
Maximum percentage of eligible receivables related with bank funds initial purchase price | 90.00% |  |
European RPA |  |  |
Finance Receivable Transferred To Held For Sale [Line Items] |  |  |
Financing receivable maximum amount under receivable purchase agreement | $ 123,800,000 | € 100,000,000 |
Singapore RPA |  |  |
Finance Receivable Transferred To Held For Sale [Line Items] |  |  |
Financing receivable maximum amount under receivable purchase agreement | $ 11,400,000 |  | SGD 15,000,000
Percent of eligible receivables | 90.00% |  |

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- Details
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- Details
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