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INCOME TAXES (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
INCOME TAXES [Abstract] |  |
Enterprise tax rate | 20.00%tsem_EnterpriseStatusTaxRate |
Federal statutory rate | 26.50%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
Deferred tax asset | $ 7,816 us-gaap_DeferredTaxAssetsNetCurrent | $ 6,010 us-gaap_DeferredTaxAssetsNetCurrent
Deferred tax liability | 75,278 us-gaap_DeferredTaxLiabilitiesNoncurrent | 13,611 us-gaap_DeferredTaxLiabilitiesNoncurrent
Valuation allowance | 297,024 us-gaap_DeferredTaxAssetsValuationAllowance | 258,678 us-gaap_DeferredTaxAssetsValuationAllowance
Tower [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss carry forwards | 1,400,000 us-gaap_OperatingLossCarryforwards / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Jazz [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Unrecognized tax benefits related to tax return which its statute of limitation may expire in March 2015 | 11,000 us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations / dei_LegalEntityAxis = tsem_JazzMember |
Net operating loss carry forwards, annual utilization amount | 2,100 tsem_OperatingLossCarryforwardsAnnualUtilizationAmount / dei_LegalEntityAxis = tsem_JazzMember |
Jazz [Member] | Federal [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss carry forwards | 31,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember / dei_LegalEntityAxis = tsem_JazzMember |
Jazz [Member] | State [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss carry forwards | 141,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember / dei_LegalEntityAxis = tsem_JazzMember |
TJP [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss carry forwards | 9,000 us-gaap_OperatingLossCarryforwards / dei_LegalEntityAxis = tsem_TowerJazzJapanLimitedMember |
Tower Jazz Panasonic Semiconductor Company Ltd [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss carry forwards | $ 12,000 us-gaap_OperatingLossCarryforwards / dei_LegalEntityAxis = tsem_TowerJazzPanasonicSemiconductorCompanyLtdMember |

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31928-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31958-109318 + Details
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