XML 12 R54.htm IDEA: XBRL DOCUMENT v3.2.0.727
Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Jan. 31, 2015
Dec. 31, 2014
Apr. 30, 2013
Mar. 31, 2013
Schedule of Equity Method Investments [Line Items]          
Carrying value $ 140,396   $ 117,733    
J-Devices [Member]          
Schedule of Equity Method Investments [Line Items]          
Carrying value $ 140,396   $ 117,733    
Ownership interest 65.70% 65.70% 60.00% 60.00% 30.00%