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Business Combinations - Intangible Assets Acquired (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 03, 2020 | Aug. 01, 2018 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Weighted average useful life |  |  | 3 years
Torrens University and Related Assets in Australia and New Zealand (ANZ) |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets | $ 103,161 |  |
Torrens University and Related Assets in Australia and New Zealand (ANZ) | Student relationships |  |  |
Business Acquisition [Line Items] |  |  |
Student relationships | $ 34,387 |  |
Weighted average useful life | 3 years |  |
Torrens University and Related Assets in Australia and New Zealand (ANZ) | Trade names |  |  |
Business Acquisition [Line Items] |  |  |
Trade names | $ 68,774 |  |
Capella Merger |  |  |
Business Acquisition [Line Items] |  |  |
Total intangible assets |  | $ 349,800 |
Capella Merger | Student relationships |  |  |
Business Acquisition [Line Items] |  |  |
Student relationships |  | $ 166,000 |
Weighted average useful life |  | 3 years |
Capella Merger | Trade names |  |  |
Business Acquisition [Line Items] |  |  |
Trade names |  | $ 183,800 |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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