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Segments and Geographical Information - Segments Information - (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Net revenues | $ 3,862,260 | $ 3,734,635 | $ 3,952,584
Gross profit | 2,706,863 | 2,633,775 | 2,935,355
Income from operations | 643,338 | 642,595 | 976,400
Stock-based compensation | 154,026 | 133,367 | 114,336
Depreciation and amortization | 142,401 | 125,793 | 108,729
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from operations | 1,373,612 | 1,314,185 | 1,584,993
Unallocated corporate expense |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from operations | (730,274) | (671,590) | (608,593)
Stock-based compensation | 138,770 | 117,557 | 102,983
Depreciation and amortization | 46,102 | 39,605 | 36,425
Clear Aligner |  |  |
Segment Reporting Information [Line Items] |  |  |
Net revenues | 3,199,329 | 3,072,585 | 3,247,080
Gross profit | 2,288,038 | 2,228,170 | 2,474,373
Clear Aligner | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from operations | 1,182,257 | 1,134,420 | 1,325,866
Stock-based compensation | 13,963 | 14,816 | 10,648
Depreciation and amortization | 64,781 | 57,888 | 50,723
Systems and Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Net revenues | 662,931 | 662,050 | 705,504
Gross profit | 418,825 | 405,605 | 460,982
Systems and Services | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from operations | 191,355 | 179,765 | 259,127
Stock-based compensation | 1,293 | 994 | 705
Depreciation and amortization | $ 31,518 | $ 28,300 | $ 21,581

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