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Long-Term Loans, Net Of Current Maturities (Summary Of Long- Term Loans, Net Of Current Maturities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010
Debt Instrument [Line Items]
Long-term debt, total	$ 400,270		$ 301,558
Less: current maturities	98,015		9,519
Long-term debt noncurrent	302,255		292,039
U.S. Dollars [Member]
Debt Instrument [Line Items]
Interest percentage	0.38
U.S. Dollars [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest percentage	0.27
GBP [Member]
Debt Instrument [Line Items]
Interest percentage	1.08
Long-Term Bank Loans [Member] | U.S. Dollars [Member]
Debt Instrument [Line Items]
Long-term bank loans	369,564	[1]	276,702	[1]
Interest percentage	Libor + 1.25-3.20%	[1]
Long-Term Bank Loans [Member] | U.S. Dollars [Member] | Minimum [Member]
Debt Instrument [Line Items]
Years of maturity	2
Long-Term Bank Loans [Member] | U.S. Dollars [Member] | Maximum [Member]
Debt Instrument [Line Items]
Years of maturity	3
Long-Term Bank Loans [Member] | Other [Member]
Debt Instrument [Line Items]
Long-term bank loans	30,144		20,694
Interest percentage	Libor + 1.65-4%
Long-Term Bank Loans [Member] | Other [Member] | Minimum [Member]
Debt Instrument [Line Items]
Years of maturity	1
Long-Term Bank Loans [Member] | Other [Member] | Maximum [Member]
Debt Instrument [Line Items]
Years of maturity	3
Other Long-Term Loans [Member] | Other [Member]
Debt Instrument [Line Items]
Other long-term loans	562		1,289
Interest percentage	Libor + 1.7-4%
Other Long-Term Loans [Member] | Other [Member] | Minimum [Member]
Debt Instrument [Line Items]
Years of maturity	1
Other Long-Term Loans [Member] | Other [Member] | Maximum [Member]
Debt Instrument [Line Items]
Years of maturity	3
Other Long-Term Loans [Member] | NIS [Member]
Debt Instrument [Line Items]
Other long-term loans			$ 2,873
Interest percentage	Prime + 1.5%
Years of maturity	3
[1] For covenants see Note 20(F).

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- Definition

Long term loans current maturities

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Long Term Loans, Maturity Period

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

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- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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- Definition

Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion.

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This element represents the carrying value of loans payable or the portion of loans payable which are not scheduled or required to be repaid for more than one year from the balance sheet date or operating cycle, if longer, and which are not otherwise defined in the taxonomy.

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

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