v3.3.1.900
Consolidated Statements of Operations (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Statement [Abstract]      
Includes non-cash share-based compensation expense $ 7,954 $ 8,247 $ 5,901