XML 49 R41.htm IDEA: XBRL DOCUMENT
v3.25.2

Summary of Assets and Liabilities Recorded at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Assets: |  |
Assets, fair value | $ 225,228 | $ 214,732
Liabilities: |  |
Liabilities, fair value | 53,702 | 49,222
Money Market Mutual Funds | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 120,897 | 115,399
Certificates of Deposit | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 2,206 | 2,206
Equity Securities | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 48,963 | 47,333
Deferred Compensation Assets | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 53,162 | 49,222
Foreign Currency Forward Exchange Contracts | Other Current Assets |  |
Assets: |  |
Assets, fair value |  | 572
Foreign Currency Forward Exchange Contracts | Accrued Liabilities Other |  |
Liabilities: |  |
Liabilities, fair value | 540 |
Deferred Compensation Liability | Other Noncurrent Liabilities |  |
Liabilities: |  |
Liabilities, fair value | 53,162 | 49,222
Basis of Fair Value Measurement, Level 1 |  |
Assets: |  |
Assets, fair value | 223,022 | 211,954
Liabilities: |  |
Liabilities, fair value | 53,162 | 49,222
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 120,897 | 115,399
Basis of Fair Value Measurement, Level 1 | Equity Securities | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 48,963 | 47,333
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Assets | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 53,162 | 49,222
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Liability | Other Noncurrent Liabilities |  |
Liabilities: |  |
Liabilities, fair value | 53,162 | 49,222
Basis of Fair Value Measurement, Level 2 |  |
Assets: |  |
Assets, fair value | 2,206 | 2,778
Liabilities: |  |
Liabilities, fair value | 540 |
Basis of Fair Value Measurement, Level 2 | Certificates of Deposit | Other Noncurrent Assets |  |
Assets: |  |
Assets, fair value | 2,206 | 2,206
Basis of Fair Value Measurement, Level 2 | Foreign Currency Forward Exchange Contracts | Other Current Assets |  |
Assets: |  |
Assets, fair value |  | $ 572
Basis of Fair Value Measurement, Level 2 | Foreign Currency Forward Exchange Contracts | Accrued Liabilities Other |  |
Liabilities: |  |
Liabilities, fair value | $ 540 |

X
- Definition Fair value portion of asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CertificatesOfDepositMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=uhs_DeferredCompensationAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=uhs_AccruedLiabilitiesOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=uhs_DeferredCompensationLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |