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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			$ 284,406tsem_PropertyPlantAndEquipmentNetAggregateInvestmentGrants	$ 284,406tsem_PropertyPlantAndEquipmentNetAggregateInvestmentGrants
Investment grants	$ 36,000tsem_FixedAssetInvestmentGrants	135,000tsem_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

X

- Details

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