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Commitments and Contingencies - Standby Letters of Credit, Surety Bonds and Other Commitments (Details) € in Thousands | 1 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2020 EUR (€) | Mar. 11, 2020 EUR (€) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 EUR (€) | Nov. 30, 2016 USD ($)
Surety Bond |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Guarantee amount, maximum potential amount of payments |  | $ 17,360,000 |  |  | $ 25,582,000 |  |
Guarantor obligations, deemed unnecessary and cancelled | $ 9,000 |  |  |  |  |  |
Cash Collateralized Letter Of Credit - Spain Tax Audits |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding, amount |  | $ 11,000,000 | € 9,443 |  | 5,500,000 | € 5,036 |
Non-Collateralized Surety Bond - UAM Brazil | Surety Bond |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Guarantee amount, maximum potential amount of payments |  |  |  |  |  |  | $ 15,300,000
Cost of surety bond |  |  |  |  |  |  | $ 1,400,000
Guarantor obligations, term |  | five |  |  |  |  |
Cash Collateralized Letter Of Credit - Spain Tax Audits, Extension of Audit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding, amount |  | $ 25,100,000 |  | € 21,600 |  |  |
Kendall College, St. Augustine, Walden University, and NewSchool of Architecture and Design |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding, amount |  | $ 125,800,000 |  |  | $ 127,300,000 |  |

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- Definition Guarantor Obligations, Deemed Unnecessary and Cancelled + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248 + Details
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- Definition Describe the approximate term of the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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