XML 92 R72.htm IDEA: XBRL DOCUMENT v3.3.1.900
Goodwill (Goodwill Rollforward) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Goodwill [Roll Forward]      
Beginning balance $ 685,310    
Final purchase price adjustment 0 $ 0 $ (9,600)
Ending balance $ 685,310 $ 685,310