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SHARE-BASED COMPENSATION (Details)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based compensation
Number of shares authorized	3,100,000
Restricted Stock Units
Award activity
Outstanding at the beginning of the period (in shares)	1,368,880
Granted (in shares)	267,510
Vested (in shares)	(295,668)
Forfeited (in shares)	(13,322)
Outstanding at the end of the period (in shares)	1,327,400
Weighted-Average Grant Date Fair Value
Granted (in dollars per share) | $ / shares	$ 35.57

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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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-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)(1)(iv)(3)



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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).

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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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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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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).

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