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Debt Schedule of Future Debt Maturities (Details) - USD ($) $ in Thousands | Aug. 31, 2019 | Aug. 31, 2018
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Schedule of Future Debt Repayments [Line Items] |  |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2020 | $ 7,500 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2021 | 12,500 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2022 | 305,059 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2023 | 20,000 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2024 | 117,500 |
Long-term Debt | 462,559 | $ 535,059
Senior Credit Facility | Senior Credit Facility - Term Loan |  |
Schedule of Future Debt Repayments [Line Items] |  |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2020 | 7,500 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2021 | 12,500 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2022 | 17,500 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2023 | 20,000 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2024 | 117,500 |
Long-term Debt | 175,000 | 247,500
Senior Notes | 5.625% Senior Notes |  |
Schedule of Future Debt Repayments [Line Items] |  |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2020 | 0 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2021 | 0 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2022 | 287,559 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2023 | 0 |
Long-term Debt, Maturities, Repayments of Principal in Fiscal 2024 | 0 |
5.625% Senior Notes Carrying Value | $ 287,559 | $ 287,559

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. + 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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