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SHAREHOLDERS' EQUITY (Other) (Narrative) (Details) In Thousands, except Share data, unless otherwise specified	12 Months Ended					1 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2014 ILS	Dec. 31, 2013 ILS	Jun. 30, 2011 TJP [Member]	Dec. 31, 2014 Warrants J [Member] USD ($)	Dec. 31, 2014 Warrants 7 [Member] USD ($)	Dec. 31, 2012 Warrants 7 [Member]	Dec. 31, 2014 Series 9 [Member] USD ($)	Jul. 31, 2013 Series 9 [Member]
SHAREHOLDERS' EQUITY [Abstract]
Capital notes				4,500,000tsem_CapitalNotesEquityEquivalents
Proceeds on account of shareholders' equity	$ 19,613us-gaap_ProceedsFromIssuanceOrSaleOfEquity	$ 38,956us-gaap_ProceedsFromIssuanceOrSaleOfEquity	$ 104,690us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Proceeds from exercise of warrants		$ 19,000us-gaap_ProceedsFromWarrantExercises
Class of Warrant or Right [Line Items]
Shares issuable for warrants							1,700,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsJMember		1,900,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsSevenMember		5,500,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = tsem_SeriesNineMember
Exercise price							$ 25.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsJMember	$ 7.2us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsSevenMember		$ 7.33us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = tsem_SeriesNineMember
Shares called by each warrant							1us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsJMember	1us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsSevenMember
Common stock, par value				15us-gaap_CommonStockParOrStatedValuePerShare	15us-gaap_CommonStockParOrStatedValuePerShare
Warrants outstanding								1,100,000us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_ClassOfWarrantOrRightAxis = tsem_WarrantsSevenMember		5,100,000us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_ClassOfWarrantOrRightAxis = tsem_SeriesNineMember
Shares issued in consideration of acquisition						1,300,000us-gaap_StockIssuedDuringPeriodSharesAcquisitions / dei_LegalEntityAxis = tsem_TowerJazzJapanLimitedMember

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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Face amount or stated value per share of common stock.

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