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Equity Awards - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule of stock-based compensation expense
Stock-based compensation expense included in operating expense	$ 6,573	$ 5,493	$ 11,902	$ 11,125
Tax benefit	1,742	1,455	3,167	2,934
Stock-based compensation expense, net of tax	4,831	4,038	8,735	8,191
Instructional and support costs
Schedule of stock-based compensation expense
Stock-based compensation expense included in operating expense	1,822	1,665	3,055	3,531
General and administration
Schedule of stock-based compensation expense
Stock-based compensation expense included in operating expense	4,682	3,732	8,642	7,498
Restructuring costs
Schedule of stock-based compensation expense
Stock-based compensation expense included in operating expense	$ 69	$ 96	$ 205	$ 96

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- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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