STOCK-BASED COMPENSATION (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2012
Information about stock options outstanding and exercisable
Common stock		$ 11,700us-gaap_CommonStockValue
Options Outstanding (in shares)	6,520
Weighted-Average Remaining Contractual Life (in years)	6 years
Weighted-Average Exercise Price (in dollars per share)	$ 41.19
Options Exercisable (in shares)	3,647
Weighted Average Remaining Contractual Life (in years)	4 years 8 months 12 days
Weighted-Average Exercise Price (in dollars per share)	$ 33.50
$10.01 to $20.00
Information about stock options outstanding and exercisable
Exercise prices, outstanding stock option awards, low end of range (in dollars per share)	$ 10.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share)	$ 20
Options Outstanding (in shares)	431
Weighted-Average Remaining Contractual Life (in years)	4 years 6 months
Weighted-Average Exercise Price (in dollars per share)	$ 17.91
Options Exercisable (in shares)	431
Weighted Average Remaining Contractual Life (in years)	4 years 6 months
Weighted-Average Exercise Price (in dollars per share)	$ 17.91
$20.01 to $30.00
Information about stock options outstanding and exercisable
Exercise prices, outstanding stock option awards, low end of range (in dollars per share)	$ 20.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share)	$ 30
Options Outstanding (in shares)	905
Weighted-Average Remaining Contractual Life (in years)	4 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 22.14
Options Exercisable (in shares)	905
Weighted Average Remaining Contractual Life (in years)	4 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 22.14
$30.01 to $40.00
Information about stock options outstanding and exercisable
Exercise prices, outstanding stock option awards, low end of range (in dollars per share)	$ 30.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share)	$ 40
Options Outstanding (in shares)	1,148
Weighted-Average Remaining Contractual Life (in years)	6 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 31.84
Options Exercisable (in shares)	749
Weighted Average Remaining Contractual Life (in years)	6 years 2 months 12 days
Weighted-Average Exercise Price (in dollars per share)	$ 31.60
$40.01 to $50.00
Information about stock options outstanding and exercisable
Exercise prices, outstanding stock option awards, low end of range (in dollars per share)	$ 40.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share)	$ 50
Options Outstanding (in shares)	2,913
Weighted-Average Remaining Contractual Life (in years)	5 years 8 months 12 days
Weighted-Average Exercise Price (in dollars per share)	$ 45.16
Options Exercisable (in shares)	1,426
Weighted Average Remaining Contractual Life (in years)	4 years
Weighted-Average Exercise Price (in dollars per share)	$ 44.05
$50.01 to $60.00
Information about stock options outstanding and exercisable
Exercise prices, outstanding stock option awards, low end of range (in dollars per share)	$ 50.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share)	$ 60.00
Options Outstanding (in shares)	381
Weighted-Average Remaining Contractual Life (in years)	7 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 58.51
Options Exercisable (in shares)	136
Weighted Average Remaining Contractual Life (in years)	7 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 58.44
$60.01 to $70.00
Information about stock options outstanding and exercisable
Options Outstanding (in shares)	492
Weighted-Average Remaining Contractual Life (in years)	9 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 66.14
Options Exercisable (in shares)	0
Weighted Average Remaining Contractual Life (in years)	0 months
Weighted-Average Exercise Price (in dollars per share)	$ 0.00
$70.01 to $80.00
Information about stock options outstanding and exercisable
Options Outstanding (in shares)	250
Weighted-Average Remaining Contractual Life (in years)	9 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 71.55
Options Exercisable (in shares)	0
Weighted Average Remaining Contractual Life (in years)	0 months
Weighted-Average Exercise Price (in dollars per share)	$ 0.00

Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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