Nature of Business (Details) $ in Thousands		9 Months Ended
Jan. 22, 2019 USD ($)	Sep. 30, 2021 item
Nature Of Operations
Number of university partners		27
Orbis Education
Nature Of Operations
Purchase price \| $	$ 361,184
Grand Canyon University
Nature Of Operations
Number of colleges operated		9
Number of off-campus classroom and laboratory sites		2

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration