Increase decrease in investments by non-controlling interests

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Percentage of revenue from service

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Senior Notes Fair Value

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Tax Effect Of Other Comprehensive Income Loss

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Term, interest rate swap transaction

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Percentage of voting equity interests acquired in the business combination.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The fair value of notes issued in noncash investing and financing activities.

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Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

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Tax effect of the change in accumulated other comprehensive income (loss), that is, the tax effect on items included in other comprehensive income (loss) during the period.

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The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Significant Accounting Policies (Narrative) (Details) Share data in Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	Jun. 30, 2010 ILS	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2011 UAV Tactical Systems Ltd [Member]	Dec. 31, 2010 Interest Rate Swap [Member] USD ($)	Dec. 31, 2011 Series A [Member] USD ($)
Significant Accounting Policies [Line Items]
Reduction of allocation to non-controlling interest		$ 0
Reclassification of non-credit related amount		7,086
Reclassification of non-credit related amount, net of tax		1,772
Percentage of minority voting rights		20.00%
Percentage of equity voting rights		50.00%
Voting rights					51.00%
Severance expenses		50,018	50,228	42,999
Percentage of revenue from service		10.00%	10.00%	10.00%
Notes issued	1,100,000,000
Notional principal						1,100,000,000
Received interest payments semi-annually in NIS			4.84%
Term, interest rate swap transaction			10
Derivative, Basis Spread on Variable Rate			1.65%
Variable rate basis of fair value hedge transactions		Under the cross currency interest rate swaps, the Company will receive fixed NIS at a rate of 4.84% on NIS 1.1 billion and pay floating six-month USD LIBOR + an average spread of 1.65% on $287,000, which reflects the U.S. dollar value of the Series A Notes on the specific dates the transactions were entered.	The purpose of these transactions was to convert the NIS fixed rate Series A Notes into USD LIBOR (6 months) floating rate obligations. As a result of these agreements, the Company is currently paying an effective interest rate of six-month LIBOR (0.45% at December 31, 2011) plus an average of 1.65% on the principal amount, as compared to the original 4.84% fixed rate.
Senior notes fair value							$ 264,931,000
Outstanding anti-dilutive stock options excluded from the calculations of diluted net earnings per share		76,815	23,041	22,599