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Consolidated Statements Of Cash Flows
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income $ 170,487 $ 89,780 $ 195,041
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 138,796 150,618 132,141
Write-off impairment and discontinued operations, net 616 15,977 1,284
Stock-based compensation 3,326 1,996 5,211
Amortization of Series A Notes discount (premium) and related issuance costs, net 153 422 (258)
Deferred income taxes and reserve, net 6,579 (8,777) (28,162)
Loss (gain) on sale of property, plant and equipment 1,197 (1,645) (1,426)
Loss (gain) on sale of investment (829) 2,189 (19,151)
Equity in net earnings of affiliated companies and partnerships, net of dividend received(*) (1,602) (270) (8,791)
Changes in operating assets and liabilities, net of amounts acquired:      
Increase in short and long-term trade receivables, and prepaid expenses (91,988) (65,062) (84,708)
Decrease (increase) in inventories, net 10,022 (95,363) (49,724)
Increase (decrease) in trade payables, other payables and accrued expenses (75,724) 17,225 76,807
Severance, pension and termination indemnities, net (10,612) 1,879 4,160
Increase (decrease) in advances received from customers 47,961 81,946 (36,396)
Net cash provided by operating activities 198,382 190,915 186,028
CASH FLOWS FROM INVESTING ACTIVITIES      
Purchase of property, plant and equipment (81,637) (121,977) (138,644)
Acquisitions of subsidiaries and business operations (Schedule A)   (12,173) (229,556)
Investments in affiliated companies and other companies (4,241) (13,555) (4,956)
Proceeds from sale of property, plant and equipment 7,335 15,059 10,667
Proceeds from sale of investments 705 329 27,941
Investment in long-term deposits (779) (609) (14,484)
Proceeds from sale of long-term deposits 2,849 40,396 30,240
Investment in short-term deposits and available-for-sale marketable securities (340,899) (88,842) (189,345)
Proceeds from sale of short-term deposits and available-for-sale marketable securities 299,029 126,306 252,550
Net cash used in investing activities (117,638) (55,066) (255,587)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from exercise of options 1,352 3,833 3,590
Purchase of non-controlling interests   (71,000)  
Repayment of long-term loans (319,601) (73,666) (488,657)
Proceeds from long-term loans 122,038 172,303 387,692
Proceeds from issuance of Series A Notes 246,973   283,213
Series A Notes issuance costs (2,035)   (2,530)
Purchase of treasury shares (26,006) (10,101)  
Repayment of Series A Notes and convertible debentures (53,530) (29,998)  
Purchase of convertible debentures of a subsidiary   (2,121)  
Dividends paid (50,616) (61,633) (63,137)
Tax benefit in respect of options exercised 161 169 710
Change in short-term bank credit and loans, net (2,817) (12,117) (40,972)
Net cash provided by (used in) financing activities (84,081) (84,331) 79,909
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (3,336) 51,518 10,350
CASH AND CASH EQUIVALENTS AT THE BEGINNING OF THE YEAR 202,577 151,059 140,709
CASH AND CASH EQUIVALENTS AT THE END OF THE YEAR 199,241 202,577 151,059
dividend received from affiliated companies and partnership 9,558 15,107 10,925
Cash paid during the year for:      
Income taxes, net 5,734 18,955 60,759
Interest $ 19,168 $ 10,258 $ 13,524