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

Selling, General And Administrative Expenses (Schedule Of Selling General And Administrative Expenses ) (Details)

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Selling, General And Administrative Expenses (Schedule Of Selling General And Administrative Expenses ) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Personnel expenses $ 149,505 $ 161,967 $ 130,254
Share-based compensation 102,843 100,162 68,152
Travel expenses 21,201 23,090 17,501
Professional services 30,983 42,921 32,359
Office expenses 20,703 26,989 21,678
Directors' expenses 3,051 2,780 3,441
Other expenses 22,726 23,399 26,507
Total selling, general and administrative expenses $ 351,012 $ 381,308 $ 299,892