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v3.25.4

Commitments and Contingencies - Construction Commitments (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2025 USD ($)
Construction Commitments |
Construction Commitments |
Construction contract commitments | $ 101.6

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- References No definition available. + Details
Name: | sem_ConstructionCommitmentsAbstract
Namespace Prefix: | sem_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=us-gaap_CapitalAdditionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |