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v3.22.2

Voluntary Separation Program (Details) - Forecast | 3 Months Ended
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Sep. 30, 2022 USD ($)
Minimum |
Voluntary Separation Program [Line Items] |
Personnel costs | $ 54,000,000
Maximum |
Voluntary Separation Program [Line Items] |
Personnel costs | $ 58,000,000

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- Definition Voluntary Separation Program [Line Items] + References No definition available. + Details
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- Definition Voluntary Separation Program, Personnel Costs + References No definition available. + Details
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Namespace Prefix: | seic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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