Annual report pursuant to Section 13 and 15(d)

STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details)

v3.3.1.900
STOCK BASED AND DEFERRED COMPENSATION - Summary of Compensation Expense and Stock Award Activity (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Summary of compensation expense and stock award activity      
Stock-based compensation expense $ 15,781 $ 12,211 $ 9,483
Cash received by Company from exercises $ 2,886 $ 1,042 $ 11,601