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Intangible Assets - Net Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Mar. 31, 2019 | Jan. 31, 2019
--- | --- | --- | ---
Intangible Assets |  |  |
Intangible assets |  |  | $ 210,280
Gross Carrying Amount | $ 210,280 |  |
Accumulated Amortization | (41,899) |  |
Net Carrying Amount | $ 168,381 |  |
University partner relationships |  |  |
Intangible Assets |  |  |
Intangible assets |  | $ 210,000 |
Estimated average useful life | 25 years |  |
Gross Carrying Amount | $ 210,000 |  |
Accumulated Amortization | (41,619) |  |
Net Carrying Amount | $ 168,381 |  |
Trade names |  |  |
Intangible Assets |  |  |
Estimated average useful life | 1 year |  |
Gross Carrying Amount | $ 280 |  |
Accumulated Amortization | $ (280) |  |

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479907/805-20-50-1 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 928 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483147/928-340-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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