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Segment and Geographic Information - Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Revenues |  |  |
Revenues | $ 1,065,480 | $ 1,131,686 | $ 1,027,653
Income (loss) from operations |  |  |
Income (loss) from operations | 70,760 | 73,912 | 109,384
Amortization of intangible assets | (14,350) | (51,495) | (64,225)
Merger and integration costs | (1,117) | (11,201) | (13,770)
Restructuring costs | (2,115) | (25,472) | (12,382)
Segment Reconciling Items |  |  |
Income (loss) from operations |  |  |
Amortization of intangible assets | (14,350) | (51,495) | (64,225)
Merger and integration costs | (1,117) | (11,201) | (13,770)
Restructuring costs | (2,115) | (25,472) | (12,382)
U.S. Higher Education |  |  |
Revenues |  |  |
Revenues | 770,979 | 829,270 | 966,579
Income (loss) from operations |  |  |
Income (loss) from operations | 38,605 | 104,914 | 193,393
Australia / New Zealand |  |  |
Revenues |  |  |
Revenues | 230,747 | 250,124 | 23,381
Income (loss) from operations |  |  |
Income (loss) from operations | 30,473 | 35,855 | (13,275)
Education Technology Services |  |  |
Revenues |  |  |
Revenues | 63,754 | 52,292 | 37,693
Income (loss) from operations |  |  |
Income (loss) from operations | $ 19,264 | $ 21,311 | $ 19,643

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