Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Refers to number of acquired operations during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	usph_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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Intangible Assets, net (Details) $ in Thousands	12 Months Ended
Intangible Assets, net (Details) $ in Thousands	Dec. 31, 2018 USD ($)	Dec. 31, 2016 Operation	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets, Net [Abstract]
Total	$ 48,828		$ 48,954
Number of acquired operations \| Operation		2
Tradenames [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total	30,256		29,673
Referral Relationships [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total	16,895		16,811
Accumulated amortization	$ 9,370		7,209
Referral Relationships [Member] \| Minimum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life	6 years
Referral Relationships [Member] \| Maximum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life	16 years
Non-compete Agreements [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total	$ 1,677		2,470
Accumulated amortization	$ 4,716		$ 4,100
Non-compete Agreements [Member] \| Minimum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life	5 years
Non-compete Agreements [Member] \| Maximum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life	6 years