XML 80 R65.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Lease Commitments - Additional Information (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) Facility | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) Facility
Leases [Abstract] |  |  |
Number of hospital facilities | Facility | 3 |  | 3
Additional capital lease obligations incurred | $ | $ 7,000,000 | $ 16,000,000 | $ 0

X
- Definition Number of hospital facilities + References No definition available. + Details
Name: | uhs_NumberOfHospitalFacilities
Namespace Prefix: | uhs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase during the period in capital lease obligations due to entering into new capital leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_CapitalLeaseObligationsIncurred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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