INCOME TAXES (Summary of Income Tax Contingencies) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning gross unrecognized tax benefits	$ 119,506us-gaap_UnrecognizedTaxBenefits	$ 72,692us-gaap_UnrecognizedTaxBenefits	$ 67,967us-gaap_UnrecognizedTaxBenefits
Increases in balances related to tax positions taken during the current periods	8,181	13,201	10,270
Increases in balances related to tax positions taken during the prior periods	7,453	58,253	793
Decreases in balances related to tax positions taken during the prior periods	(9,537)	(13,836)	(1,877)
Lapse of statute of limitation	(2,418)	(7,152)	(4,314)
Settlements and effective settlements	(360)	(3,652)	(147)
Ending gross unrecognized tax benefits	$ 122,825us-gaap_UnrecognizedTaxBenefits	$ 119,506us-gaap_UnrecognizedTaxBenefits	$ 72,692us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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