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PROPERTY AND EQUIPMENT, NET (Narrative) (Details) In Thousands, unless otherwise specified | 84 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2012 USD ($) | Dec. 31, 2012 ILS | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
PROPERTY AND EQUIPMENT, NET [Abstract] |  |  |  |
Aggregate investment grants received |  |  | $ 284,406 tsem_PropertyPlantAndEquipmentNetAggregateInvestmentGrants | $ 284,406 tsem_PropertyPlantAndEquipmentNetAggregateInvestmentGrants
Investment grants | $ 36,000 tsem_FixedAssetInvestmentGrants | 135,000 tsem_FixedAssetInvestmentGrants |  |

X
- Definition Investment grants received during the period to reduce the cost of fixed assets. + References No definition available. + Details
Name: | tsem_FixedAssetInvestmentGrants
Namespace Prefix: | tsem_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate investment grants received to reduce the cost of fixed assets as of the balance sheet date. + References No definition available. + Details
Name: | tsem_PropertyPlantAndEquipmentNetAggregateInvestmentGrants
Namespace Prefix: | tsem_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration