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

Earnings Per Share (Computation Of Outstanding Shares For Basic EPS) (Details)

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Earnings Per Share (Computation Of Outstanding Shares For Basic EPS) (Details) - shares
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share [Abstract]      
Ordinary share capital, shares issued 203,411,207 212,318,291  
Treasury stock, shares (3,069,003)    
Ordinary shares outstanding 200,342,204 212,318,291  
Unvested restricted stock (3,030,724) (232,140) (139,920)
Ordinary shares outstanding for basic EPS 197,311,480 212,086,151