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Business Combinations - Acquisition Related Costs and Measurement period adjustments (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 01, 2018 item | Dec. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |
Number of independent universities | item | 2 |  |  |
Issuance costs |  |  |  | $ 148
Measurement period adjustment (reduction), of cash and cash equivalent |  | $ (500) |  |
Capella Merger |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Transaction costs |  |  | $ 20,100 |
Issuance costs |  |  |  | $ 100
Measurement period adjustment, (reduction) of other assets |  | (1,400) |  |
Measurement period adjustment, (reduction) of deferred income taxes |  | (100) | 3,800 |
Measurement period adjustment, (reduction) of current assets |  |  | (1,900) |
Measurement period adjustment, increase of current liabilities |  |  | 1,300 |
Measurement period adjustment, increase of long term liabilities |  |  | 100 |
Increase (decrease) of goodwill |  | $ 1,800 | $ (500) |

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- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to current financial assets acquired in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
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- Definition Represents the number of independent universities. + References No definition available. + Details
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- Definition Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed 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 increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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