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Segment Reporting - Schedule of Non-cash items (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Non cash items included in segment income (loss) from operations by reportable segment
Depreciation and amortization	$ 11,962	$ 10,806	$ 35,160	$ 33,033
Restructuring costs	1,786	0	2,557	0
Restructuring costs	40	69	188	274
Stock-based compensation	5,868	6,887	17,195	18,789
U.S. Higher Education
Non cash items included in segment income (loss) from operations by reportable segment
Depreciation and amortization	6,442	7,981	21,692	23,607
Stock-based compensation	4,648	5,259	13,683	14,278
Australia / New Zealand
Non cash items included in segment income (loss) from operations by reportable segment
Depreciation and amortization	2,394	1,937	7,218	6,946
Stock-based compensation	462	1,061	1,224	2,871
Education Technology Services
Non cash items included in segment income (loss) from operations by reportable segment
Depreciation and amortization	1,340	888	3,693	2,480
Stock-based compensation	$ 718	$ 498	$ 2,100	$ 1,366

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+ References

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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

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Amount of noncash expense for share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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