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Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Allowances for Doubtful Accounts |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | $ 225,726 | $ 163,644 | $ 106,445
Additions: Charged to Costs and Expenses | 2,748 | 191,581 | 65,725
Deductions: Write-offs, net of Recoveries | (6,661) | (129,499) | (8,526)
Balance at End of Year | 221,813 | 225,726 | 163,644
Valuation Allowance for Deferred Tax Assets |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 289,083 | 213,583 | 104,334
Additions: Charged to Costs and Expenses | 61,854 | 115,893 | 138,794
Deductions: Write-offs, net of Recoveries | (120,563) | (40,393) | (29,545)
Balance at End of Year | 230,374 | 289,083 | 213,583
Reserve for Supplier Advance Payments |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 130,705 | 0 |
Additions: Charged to Costs and Expenses | 0 | 130,705 |
Deductions: Write-offs, net of Recoveries | (20,092) | 0 |
Balance at End of Year | $ 110,613 | $ 130,705 | $ 0

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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