Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.10.0.1
Income Taxes (Narrative) (Details)
₪ in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2019
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2017
ILS (₪)
Accrued interest and penalties related to uncertain tax positions     $ 907          
Statutory tax rates     23.00% 24.00% 25.00%      
Privileged enterprise benefits rate     23.00%          
Tax-exempt income     $ 238,300          
Change in corporate tax rate, amount incurred     $ 23,800          
Reduced Corporate Tax Rate 7.50%   7.50%          
Decrease In Tax Rates In Year Thereafter           16.00%    
Special Preferred Enterprise Of Reduced Tax Rates 1 6.00%   20.00%     16.00% 16.00%  
Special Preferred Enterprise Of Reduced Tax Rates 2 6.00%           9.00%  
Deferred tax asset $ 114,107   $ 111,196 $ 114,107        
Valuation allowance of deferred tax assets 152,062   $ 152,659 152,062        
Valuation allowance and deferred tax assets tax rate     21.00%          
Change in valuation allowance 65,600              
Change in deferred tax assets $ 65,600   $ 3,956 $ 2,549 $ 10,378      
Foreign ownership percentage basis for determining tax rate     90.00%          
Special Preferred Enterprise Tax Exempt Period     10 years          
Approved enterprise and beneficiary enterprise income tax exempt or taxable rate     10.00%          
Dividend withholding tax rate 20.00%   15.00%          
Persentage of limitation uses     80.00%          
Preferred Enterprise Of Reduced Tax Rates 1 12.00%              
Preferred Enterprise Of Reduced Tax Rates 2 12.00%              
Preferred Benefitted Intangible Assets | ₪               ₪ 200,000
Special Preferred Benefitted Intangible Assets | ₪               ₪ 500,000
Israel [Member]                
Statutory tax rates     23.00% 24.00% 25.00%      
Israel [Member] | Subsequent Event [Member]                
Statutory tax rates   23.00%            
United States [Member]                
Statutory tax rates     21.00%          
HONG KONG                
Statutory tax rates     16.50%          
GERMANY                
Statutory tax rates     29.00%          
Minimum [Member]                
Reduced Corporate Tax Rate     21.00%          
Foreign ownership percentage basis for determining tax rate     10.00%          
Foreign Dividend Withholding tax rate     4.00%          
Maximum [Member]                
Reduced Corporate Tax Rate     35.00%          
Foreign ownership percentage basis for determining tax rate     25.00%          
Dividend withholding tax rate     30.00%          
Subsidiaries [Member]                
Operating losses carryforwards $ 486,000   $ 479,000 $ 486,000        
Deferred tax asset $ 114,000   112,000 $ 114,000        
Deferred tax liability     $ 128,700