Annual report pursuant to Section 13 and 15(d)

STOCK BASED AND DEFERRED COMPENSATION - Summary of Additional Information Regarding Stock Plan (Details)

v3.6.0.2
STOCK BASED AND DEFERRED COMPENSATION - Summary of Additional Information Regarding Stock Plan (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Summary of stock based compensation agreements    
Unrecognized stock-based compensation cost $ 18,528 $ 18,545
Weighted average years expense recognition period 2 years 6 months 22 days 2 years 4 months 1 day
Total equity awards outstanding (in shares) 1,147,271 1,078,877