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Commitments and Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) Officer	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Operating Leased Assets [Abstract]
Rent expense	$ 37.5	$ 37.1	$ 34.8
Retirement date	Oct. 31, 2020
Expiration date	Dec. 31, 2020
Renewal period of employment agreements	2 years
Future compensation - 2020	$ 39.3
Future compensation - 2021 through 2023	$ 8.6
Executive Officer [Member]
Operating Leased Assets [Abstract]
Number of officers with the company had employee agreement | Officer	4
Minimum [Member]
Operating Leased Assets [Abstract]
Operating leases renewal period	1 year
Maximum [Member]
Operating Leased Assets [Abstract]
Operating leases renewal period	5 years

X

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

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X

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of required minimum payments for employee agreements in excess of one year due in the next fiscal year following the latest fiscal year.

+ References

No definition available.

+ Details

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X

- Definition

Amount of required minimum payments for employee agreements in excess of one year due after next fiscal year following the latest fiscal year.

+ References

No definition available.

+ Details

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Namespace Prefix:	usph_
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X

- Definition

Expiration date of the employment agreements.

+ References

No definition available.

+ Details

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- Definition

Retirement date of one of the employee in employment agreements.

+ References

No definition available.

+ Details

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- Definition

Number of employees covered under employee agreement during the period.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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X

- Definition

Employment agreement renewal period.

+ References

No definition available.

+ Details

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