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Business Combinations - Fair Value of Consideration Transferred (Details) $ / shares in Units, $ in Thousands	Aug. 01, 2018 USD ($) item $ / shares shares
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of independent universities | item	2
Capella Merger
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Conversion ratio (in shares) | shares	0.875
Total fair value of consideration transferred	$ 1,236,961
Capella Merger | Common Stock
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Fair value	$ 1,209,483
Number of common shares issued (in shares) | shares	10,263,775
Market price (in dollars per share) | $ / shares	$ 117.84
Capella Merger | Equity-based awards
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Fair value	$ 27,478

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+ References

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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