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Investments Other Investments (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
May 09, 2016
Schedule of Cost-method Investments [Line Items]      
Cost Method Investments     13.00%
Noncash or Part Noncash Acquisition, Investments Acquired $ 0 $ 122,075  
Breadcrumb [Member]      
Schedule of Cost-method Investments [Line Items]      
Noncash or Part Noncash Acquisition, Investments Acquired $ 8,323 $ 0