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Significant Accounting Policies, Redeemable Non-Controlling Interest (Details) | 12 Months Ended
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Dec. 31, 2021
Minimum [Member] |
Redeemable Non-Controlling Interest [Abstract] |
Redeemable non-controlling interest, redemption rights, commencement period | 3 years
Maximum [Member] |
Redeemable Non-Controlling Interest [Abstract] |
Redeemable non-controlling interest, redemption rights, commencement period | 5 years

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

X
- Definition The commencement period of redemption rights for redeemable non controlling interest, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Namespace Prefix: | usph_
Data Type: | xbrli:durationItemType
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
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Period Type: |