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Accounting Policies - Capitalized Software Costs and Software Implementation Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |
Capitalized software costs | $ 5.7 | $ 1.2
Capitalized implementation costs | $ 5.9 | $ 4.7
Minimum | Internally developed and purchased software |  |
Property, Plant and Equipment [Line Items] |  |
Useful life | 2 years |
Maximum | Internally developed and purchased software |  |
Property, Plant and Equipment [Line Items] |  |
Useful life | 3 years |

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- Definition Capitalized Computer Software During Period + References No definition available. + Details
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Namespace Prefix: | unity_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Capitalized Computer Software Implementation Costs During Period + References No definition available. + Details
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Balance Type: | debit
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Period Type: | duration

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |