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Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Percentage Increase In Value Of Division

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weighted average price per share of restricted shares granted during the period

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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 risk-free interest rate assumption that is used in valuing an option on its own shares.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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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.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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SHAREHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION (Details 2) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Equity And Share-Based Compensation
Number of restricted shares outstanding			266,826		26,224
restricted shares granted			200,000	0
weighted average price per share of restricted shares granted			$ 19.06
Number of service-based restricted shares held at the end of the period			300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	200,000	0
Number of restricted shares issued during the period			(2,836)
Number of Options
Outstanding at the beginning of the period (in shares)			2,601,892
Granted (in shares)			710,410	100,000
Exercised (in shares)			(21,984)
Forfeited (in shares)			(30,031)
Outstanding at the end of the period (in shares)	3,260,287		3,260,287		2,601,892
Exercisable at the end of the period (in shares)	2,281,382		2,281,382
Weighted average exercise price
Outstanding at the beginning of the period (in usd per share)			$ 21.21
Granted (in usd per share)			23.17	$ 105.11
Exercised (in usd per share)			9.19
Forfeited (in usd per share)			64.66
Outstanding at the end of the period (in usd per share)	$ 21.45		21.45		$ 21.21
Exercisable at the end of the period (in usd per share)	$ 14.34		$ 14.34
Weighted average contractual term
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2			5 years 2 months 20 days		4 years 5 months 9 days
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2			5 years 2 months 20 days		4 years 5 months 9 days
Exercisable at the end of the period			3 years 5 months 27 days
Aggregate intrinsic value
Aggregate intrinsic value, beginning balance (in dollars)			$ 47,805
Aggregate intrinsic value, ending balance (in dollars)	$ 46,119		46,119		$ 47,805
Exercisable at the end of the period (in dollars)	$ 40,448		$ 40,448
Employee and Non Employee Stock Option \| Vesting Based on Service
Number of Options
Outstanding at the end of the period (in shares)	1,300,000		1,300,000
Employee and Non Employee Stock Option \| Minimum \| Vesting Based on Service
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Employee and Non Employee Stock Option \| Maximum \| Vesting Based on Service
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Expiration term			10 years
Stock Appreciation Rights (SARs) [Member]
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Percentage Of Divisions, Maximum			15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Percentage Increase In Value Of Division			1.00%
Time-Based Stock Appreciation Rights (SARs) [Member]
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Percentage Of Total Award			25.00%
Performance-Based Stock Appreciation Rights (SARs) [Member]
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Percentage Of Total Award			75.00%
Restricted Stock [Member] \| Minimum
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			1 year
Restricted Stock [Member] \| Maximum
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Black-Scholes
Equity And Share-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate				2.00%