In The Money Value Of Stock Options.

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- Definition

Share based compensation arrangement by share based payment award compensation cost before tax

+ References

No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award compensation cost net of tax.

+ References

No definition available.

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- Definition

Share Based Compensation Reserved For Issuance Upon Conversion Of Shares

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

Discount rate from fair value on offering date that participants pay for shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Net number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ References

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Common Stock - Additional Information (Detail) (USD $)	12 Months Ended
Common Stock - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid, per share	$ 0.30	$ 0.20	$ 0.60
Dividends declared and paid	$ 29,700,000us-gaap_DividendsCommonStockCash	$ 19,600,000us-gaap_DividendsCommonStockCash	$ 58,400,000us-gaap_DividendsCommonStockCash
Stock repurchase programs authorized to purchase, value	400,000,000			400,000,000
Stock repurchased, value	100,749,000	27,201,000	19,154,000
Compensation cost recognized	31,092,000us-gaap_ShareBasedCompensation	27,783,000us-gaap_ShareBasedCompensation	22,518,000us-gaap_ShareBasedCompensation
Excess tax benefit from share based compensation	33,912,000	20,121,000	16,040,000
Stock options granted during period (net of cancellations)	2,845,500	2,889,750	2,966,850
Total in-the-money value of all stock options exercised during the year	112,500,000uhs_InMoneyValueOfStockOptions	70,900,000uhs_InMoneyValueOfStockOptions	54,400,000uhs_InMoneyValueOfStockOptions
Stock issued during period, net of cancellations	1,100,000
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted during period (net of cancellations)	2.8	2.6	2.6
Weighted-average grant date fair value of option granted	$ 17.23	$ 13.33	$ 10.73
Common Stock remain available for issuance	3,100,000
2005 Employees' Restricted Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost recognized	75,303	90,587	117,901
Common Stock remain available for issuance	4,900,000
Stock issued under employee stock purchase plan	26,189	10,000	54,127
Percentage of discount provided to eligible employees for purchase of shares under employee stock purchase plan	10.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost recognized, pre-tax charge	29,200,000	25,800,000	20,100,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost recognized, after-tax	1,900,000	2,000,000	2,400,000
Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased, shares	548,192
Stock repurchased, value	57,950,000
Income Tax Withholding Obligations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased, shares	480,972
Stock repurchased, value	42,700,000
Special Cash Dividend
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared and paid, per share			$ 0.40
Dividends declared and paid			$ 38,900,000
Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved	6,000,000
Issuance upon conversion of shares	23,297,420
Class B \| Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved	23,000,000