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Segment and Geographic Information - Schedule of Non-cash items (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Non cash items included in segment income (loss) from operations by reportable segment |  |  |
Depreciation and amortization | $ 44,378 | $ 57,313 | $ 63,124
Amortization of intangible assets | 0 | 11,457 | 14,350
Merger and integration costs | 0 | 336 | 0
Restructuring costs | 182 | 385 | 2,480
Restructuring costs | 343 | 507 | 0
Stock-based compensation | 25,571 | 19,772 | 21,792
U.S. Higher Education |  |  |
Non cash items included in segment income (loss) from operations by reportable segment |  |  |
Depreciation and amortization | 31,663 | 33,655 | 35,863
Stock-based compensation | 19,337 | 17,653 | 19,572
Australia / New Zealand |  |  |
Non cash items included in segment income (loss) from operations by reportable segment |  |  |
Depreciation and amortization | 9,065 | 8,954 | 8,842
Stock-based compensation | 3,951 | (117) | 1,073
Education Technology Services |  |  |
Non cash items included in segment income (loss) from operations by reportable segment |  |  |
Depreciation and amortization | 3,468 | 2,526 | 1,589
Stock-based compensation | $ 1,940 | $ 1,729 | $ 1,147

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + 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://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + 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 + Details
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