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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2013
Accounting Policies [Abstract] |
Changes In Accumulated Other Comprehensive Income By Components | The components of accumulated other comprehensive income (loss), net of taxes, in the amount of $12,604 and $23,744 at December 31, 2013 and 2012, respectively, were as follows:
| Year ended December 31,
| 2013 |  | 2012
Foreign currency translation differences | $ | 1,457 |  |  | $ | (5,189 | )
Unrealized gains (losses) on derivative instruments, net of $24 tax benefit | (1,530 | ) |  | 14,771 |
Pension and post-retirement benefit plans, net of $12,580 tax benefit | (25,433 | ) |  | (42,354 | )
Unrealized gains (losses) on available-for-sale marketable securities | 287 |  |  | (772 | )
Accumulated other comprehensive loss, net of taxes | $ | (25,219 | ) |  | $ | (33,544 | )
Schedule Of Estimated Useful Life Of Assets | Depreciation is calculated by the straight-line method over the estimated useful life of the assets at the following annual rates:
| % |  |
Buildings and leasehold improvements (*) | 2-20 |  |
Instruments, machinery and equipment | 3-33 |  |
Office furniture and other | 4-33 |  |
Motor vehicles | 12-33 |  | (Mainly 15%)
(*) | Prepayments for operating leases and leasehold improvements are amortized generally over the term of the lease or the useful life of the assets, whichever is shorter.
Schedule Of Warranty Liability | Changes in the Company’s provision for warranty, which is included in other payables and accrued expenses in the Balance Sheet, are as follows:
| 2013 |  | 2012
Balance, at January 1 | $ | 189,713 |  |  | $ | 176,831 |
Warranties issued during the year | 75,782 |  |  | 81,952 |
Reduction due to warranties forfeited or claimed during the year (*) | (86,418 | ) |  | (69,070 | )
Balance, at December 31 | $ | 179,077 |  |  | $ | 189,713 |
Schedule Of Employee Stock Options On Estimated Weighted Average Assumptions | The fair value based cost of employee stock options is estimated at the grant date using a lattice-based option valuation model with the following weighted average assumptions:
| 2013 |  | 2012 |  | 2011
Dividend yield | 2.56 | % |  | 2.45 | % |  | 2.23 | %
Expected volatility | 34.29 | % |  | 36.07 | % |  | 31.59 | %
Risk-free interest rate | 0.87 | % |  | 0.83 | % |  | 2.01 | %
Expected life | 4 years |  |  | 4 years |  |  | 4 years |
Forfeiture rate | 0.56 | % |  | 0.56 | % |  | 0.56 | %
Suboptimal factor | 1.75 |  |  | 1.75 |  |  | 1.75 |
Schedule Of Assets And Liabilities Measured At Fair Value On Recurring Basis | Assets and liabilities measured at fair value on a recurring basis are summarized below:
| Fair value measurement at
| December 31, 2013 using
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Description of Assets |  |  |  |  |
Available-for-sale marketable debt securities: |  |  |  |  |
Government bonds | $ | 5,919 |  |  | $ | — |  |  | $ | — |
Corporate bonds | — |  |  | 45,157 |  |  | — |
Foreign currency derivatives and option contracts | — |  |  | 5,000 |  |  | — |
Cross-currency interest rate swap | — |  |  | 58,154 |  |  | — |
Liabilities |  |  |  |  |  |  |  |
Foreign currency derivative and option contracts | — |  |  | (4,766 | ) |  | — |
Total | $ | 5,919 |  |  | $ | 103,545 |  |  | $ | — |
| Fair value measurement at
| December 31, 2012 using
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Description of Assets |  |  |  |  |
Available-for-sale marketable debt securities: |  |  |  |  |
Government bonds | $ | 12,620 |  |  | $ | — |  |  | $ | — |
Corporate bonds | — |  |  | 37,441 |  |  | — |
Foreign currency derivatives and option contracts | — |  |  | 24,738 |  |  | — |
Cross-currency interest rate swap | — |  |  | 22,415 |  |  | — |
Liabilities |  |  |  |  |  |  |  |
Foreign currency derivative and option contracts | — |  |  | (4,992 | ) |  | — |
Total | $ | 12,620 |  |  | $ | 79,602 |  |  | $ | — |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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