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Accounts Receivable Accounts Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Oct. 31, 2018 | Jul. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Revenue, Practical Expedient, Financing Component [true false] | 0 |
Accounts Receivable, Gross, Current | $ 341,558 | $ 357,045
Less: Allowance for doubtful accounts | 5,554 | 5,444
Accounts receivable, net | 336,004 | 351,601
Advance Charges Receivable [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts Receivable, Gross, Current | 260,459 | 230,092
Trade Accounts Receivable [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts Receivable, Gross, Current | 79,229 | 125,255
Other Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts Receivable, Gross, Current | $ 1,870 | $ 1,698

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- Definition Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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