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INFORMATION ON GEOGRAPHIC AREAS AND MAJOR CUSTOMERS (Schedule of Revenues of Major Customers) (Details) (Revenues [Member])	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Customer A [Member]
Concentration Risk [Line Items]
Percentage	38.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_CustomerOneMember
Customer B [Member]
Concentration Risk [Line Items]
Percentage	7.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_CustomerTwoMember		27.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_CustomerTwoMember		43.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_CustomerTwoMember
Other customers [Member]
Concentration Risk [Line Items]
Percentage	16.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember	[1]	16.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember	[1]	10.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember	[1]
Number of customers	2tsem_ConcentrationRiskNumberOfCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember		2tsem_ConcentrationRiskNumberOfCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember		2tsem_ConcentrationRiskNumberOfCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember
Other customers [Member] | Minimum [Member]
Concentration Risk [Line Items]
Percentage	7.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MinimumMember		7.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MinimumMember		4.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Other customers [Member] | Maximum [Member]
Concentration Risk [Line Items]
Percentage	9.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MaximumMember		9.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MaximumMember		6.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_MajorCustomersAxis = tsem_OtherCustomersMember / us-gaap_RangeAxis = us-gaap_MaximumMember
[1] Represents sales to two different customers accounted for between 7% and 9% of sales during 2014 and 2013 and to two different customers accounted for between 4% and 6% of sales during 2012.

X

- Definition

Number of customers included in the concentration risk.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

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-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

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-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611



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-Topic 275

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