STOCK OPTIONS AND STOCK AWARDS (Details 2) (USD $)	3 Months Ended
Mar. 31, 2013
Performance-based restricted stock units
Stock Awards
Additional percentage of restricted stock units vested on the date the performance goal is achieved	33.00%
Performance-based restricted stock units \| Estimates
Stock Awards
Issuance of shares under awards (in shares)	47,000
Performance-based restricted stock units \| Certain officers
Stock Awards
Number of awards granted (in shares)	140,550
Number of performance goals to be attained	2
Performance-based restricted stock units \| Certain officers \| XIAFLEX
Stock Awards
Weighting on attaining a specified level of U.S. net income of XIAFLEX (as a percent)	50.00%
Weighting based upon timing of approval, and labelling required, by the U.S. Food and Drug Administration (as a percent)	50.00%
Restricted stock
Stock Awards
Granted (in shares)	0
Nonvested shares
Nonvested at the beginning of the period (in shares)	48,700
Issued (in shares)	0
Vested (in shares)	(1,000)
Cancelled (in shares)	0
Nonvested at the end of the period (in shares)	47,700
Restricted stock, Weighted average grant-date value
Nonvested at the beginning of the period (in dollars per share)	23.76
Issued (in dollars per share)	0.00
Vested (in dollars per share)	20.07
Cancelled (in dollars per share)	0.00
Nonvested at the end of the period (in dollars per share)	23.84
Restricted stock units
Stock Awards
Percentage of restricted stock units vested on the date the performance goal is achieved	33.00%
Nonvested shares
Vesting period	4 years
Interval period for vesting of granted awards	1 year
Restricted stock units \| Employee
Stock Awards
Granted (in shares)	281,900
Nonvested shares
Issued (in shares)	281,900

Represents the additional percentage of restricted stock vested on the date of achievement of the performance goal.

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Represents the percentage of restricted stock vested on the date of achievement of the performance goal.

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Represents the number of performance goals to be achieved to earn the right to receive shares of common stock under equity-based compensation award.

+ References

No definition available.

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Represents the percentage weighting on attaining a specified level of domestic net sales of the entity's product in a year.

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Represents the percentage weighting based upon the timing of approval, and labelling required, by the U.S. Food and Drug Administration.

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No definition available.

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Represents the interval period for vesting of granted awards under equity-based compensation arrangement.

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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.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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).

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The weighted average fair value at grant date for nonvested equity-based awards issued 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

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Net number of non-option equity instruments granted to participants.

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Number of share instruments newly issued under a share-based compensation plan.

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