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Basis of Presentation and Significant Accounting Policies, Contractual Allowances (Details) | 9 Months Ended
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Sep. 30, 2024
Minimum [Member] |
Contractual Allowances [Abstract] |
Difference between net revenues and corresponding cash collections, approximately of net revenues | 1.00%
Maximum contractual allowance reserve estimate | 1.00%
Maximum [Member] |
Contractual Allowances [Abstract] |
Difference between net revenues and corresponding cash collections, approximately of net revenues | 1.50%
Maximum contractual allowance reserve estimate | 1.50%

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

X
- Definition Difference between net revenues and corresponding cash collections reflected percentage of net revenues. + References No definition available. + Details
Name: | usph_DifferenceBetweenNetRevenuesAndCorrespondingCashCollectionsReflectedPercentageOfNetRevenues
Namespace Prefix: | usph_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum contractual allowance reserve estimate. + References No definition available. + Details
Name: | usph_MaximumContractualAllowanceReserveEstimate
Namespace Prefix: | usph_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |