SHARE INCENTIVE PLANS: (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Ordinary shares reserved for future issuance under equity incentive plans
Total shares reserved for future issuance (in shares)	7,262,655
Restricted share units
Activity in nonvested restricted share units outstanding
Non vested restricted share units at the beginning of the period (in shares)	1,763,160	1,191,673	414,945
Restricted share units granted (in shares)	1,162,133	1,110,230	1,143,142
Restricted share units vested (in shares)	(778,084)	(480,150)	(224,005)
Restricted share units cancelled (in shares)	(172,755)	(58,593)	(142,409)
Non vested restricted share units at the end of the period (in shares)	1,974,454	1,763,160	1,191,673
Weighted Average Grant Date Fair Value, Restricted Share Units Outstanding
Non vested restricted share units at the beginning of the period (in dollars per share)	$ 36.29	$ 26.05	$ 19.86
Restricted share units granted (in dollars per share)	$ 49.05	$ 42.88	$ 27.00
Restricted share units vested (in dollars per share)	$ 31.16	$ 24.65	$ 20.02
Restricted share units cancelled (in dollars per share)	$ 42.49	$ 30.39	$ 24.97
Non vested restricted share units at the end of the period (in dollars per share)	$ 43.81	$ 36.29	$ 26.05
Total intrinsic value of all outstanding restricted share units	$ 78.9
Ordinary shares reserved for future issuance under equity incentive plans
Restricted share units outstanding	1,974,454	1,763,160	1,191,673
Stock options
Weighted Average Grant Date Fair Value, Restricted Share Units Outstanding
Restricted share units granted (in dollars per share)	$ 39.97	$ 59.38
Ordinary shares reserved for future issuance under equity incentive plans
Shares outstanding	2,806,224
Global Plan
Ordinary shares reserved for future issuance under equity incentive plans
Share authorized for future issuance (in shares)	1,236,003
Employee Share Purchase Plan
Ordinary shares reserved for future issuance under equity incentive plans
Share authorized for future issuance (in shares)	1,245,974

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Aggregate number of common shares reserved for future issuance.

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Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

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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 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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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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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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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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Price of a single share of a number of saleable stocks of a company.

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