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Higher Education Emergency Relief Fund Grants (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) student
Unusual or Infrequent Item, or Both [Line Items]
HEERF funds received		$ 16.8
HEERF III funds received		$ 9.9
CRRSAA, amount awarded			$ 6.8
Awards granted to students | student			4,900
Granted amount included in restricted cash			$ 0.7
Fund available			$ 0.1
Sanitization supplies, partitions, labor hours and other related expenses	$ 0.9
HEERF funds, draws	0.9
Educational services and facilities
Unusual or Infrequent Item, or Both [Line Items]
Sanitization supplies, partitions, labor hours and other related expenses	0.3
Selling, general and administrative
Unusual or Infrequent Item, or Both [Line Items]
Sanitization supplies, partitions, labor hours and other related expenses	$ 0.6

X

- Definition

Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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