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- Definition

Share-based compensation agreement by share-based payment awared, number of shares originally authorized

+ References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. [2013 New element]

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period, Greater than 10% Shareholders

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Greater than 10% Shareholders, Percent

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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

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-Name Accounting Standards Codification

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

+ References

No definition available.

+ Details

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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- Definition

Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition.

+ References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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)(2)(iii)(1)

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph A240

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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.

+ References

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-Topic 718

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ References

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

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- Definition

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

+ References

No definition available.

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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 Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(1)

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-Name Accounting Standards Codification

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- Definition

Purchase price of common stock expressed as a percentage of its fair market value.

+ References

No definition available.

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STOCK-BASED COMPENSATION - Equity Plans and Stock Options (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	11 Months Ended	12 Months Ended		2 Months Ended	11 Months Ended	12 Months Ended			2 Months Ended	11 Months Ended	12 Months Ended		0 Months Ended			12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	May 07, 2012 Employee Stock Option [Member]	Dec. 31, 2010 Employee Stock Option [Member]	Dec. 31, 2012 Employee Stock Option [Member]	Dec. 31, 2011 Employee Stock Option [Member]	Dec. 31, 2012 Employee Stock Option [Member] Minimum [Member]	May 07, 2012 Restricted Stock [Member]	Dec. 31, 2010 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2011 Restricted Stock [Member]	Jun. 10, 2010 2008 Plan [Member]	Dec. 31, 2012 2008 Plan [Member]	Jan. 01, 2008 2008 Plan [Member]	Dec. 31, 2012 2008 Plan [Member] Restricted Stock [Member] Minimum [Member]	Mar. 25, 2010 CHS 2006 Equity Incentive Plan [Member]	Dec. 31, 2012 BioScrip/CHS Plan [Member]	Mar. 25, 2010 BioScrip/CHS Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation agreement by share-based payment awared, number of shares originally authorized																	13,000,000		3,106,315
rollover options																			716,086
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized													6,855,000		3,580,000			2,390,229
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized													3,275,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant														2,028,726				1,719,528
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		2,106,500		1,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period									100,000		70,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period						3 years										3 years
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent								100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Great Than 10% Shareholders, Percent								110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period						10 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period, Greath Than 10% Shareholders						5 years
Allocated Share-based Compensation Expense					$ 3.3	$ 4.6	$ 3.7			$ 0.3	$ 0.4	$ 0.5
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost						0.3
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 4.09	$ 4.00	$ 2.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	3.1	4.4	2.5
Proceeds from Stock Options Exercised	4.1	8.7	3.2
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options		$ 7.0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition						2 years					4 months 24 days