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Fair Value Measurements (Details) $ in Thousands | Jul. 31, 2019 USD ($) | Dec. 11, 2018 USD ($) | Dec. 11, 2018 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
--- | --- | --- | --- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Long-term debt, gross |  |  |  | $ 293,250 | $ 294,000 | $ 336,250
Accounts Receivable | Credit extension program |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans Receivable, Fair Value Disclosure |  |  |  | $ 33,000 | $ 34,300 | $ 38,100
DeVry University [Member] |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Receivable with Imputed Interest, Face Amount |  | $ 10,000 | $ 10,000 |  |  |
Receivable with Imputed Interest, Effective Yield (Interest Rate) |  | 4.00% | 4.00% |  |  |
Receivable with Imputed Interest, Due Date |  | Jan. 01, 2022 | Jan. 01, 2022 |  |  |
DeVry University [Member] | Discount rate | Level 2 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  | 0.04 | 0.04 | 0.04
DeVry University [Member] | Other Assets |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans Receivable, Fair Value Disclosure |  |  |  | $ 10,000 | $ 10,000 | $ 10,000
Chicago, Illinois Campus [Member] | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans Receivable, Fair Value Disclosure |  |  |  | $ 41,700 | $ 41,400 | $ 40,400
Receivable with Imputed Interest, Face Amount | $ 46,800 |  |  |  |  |
Receivable with Imputed Interest, Effective Yield (Interest Rate) | 4.00% |  |  |  |  |
Receivable with Imputed Interest, Due Date | Jul. 31, 2024 |  |  |  |  |
Chicago, Illinois Campus [Member] | Discount rate | Level 2 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  | 0.07 | 0.07 | 0.07
Chicago, Illinois Campus [Member] | Other Assets |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Loans Receivable, Fair Value Disclosure |  |  |  | $ 41,700 | $ 41,400 | $ 40,400
Interest Rate Swap | Other Assets |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Derivative Asset |  |  |  | $ 10,200 | $ 10,400 |

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