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Basis of Presentation and Nature of Business - Additional Information (Details) | Jul. 02, 2021 | Mar. 31, 2023
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Alight Holdings |  |
Basis Of Presentation And Nature Of Business [Line Items] |  |
Non-voting ownership percentage held by noncontrolling interest |  | 8.00%
Special Purpose Acquisition Company |  |
Basis Of Presentation And Nature Of Business [Line Items] |  |
Business combination, closing date of acquisition | Jul. 02, 2021 |
Alight | Special Purpose Acquisition Company | Alight Holdings |  |
Basis Of Presentation And Nature Of Business [Line Items] |  |
Percentage of economic interest | 92.00% |
Business combination, percentage of voting power | 100.00% |

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