XML 87 R74.htm IDEA: XBRL DOCUMENT v3.3.1.900
SHARE-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based compensation      
Number of shares authorized 3,100,000    
Restricted Stock Units      
Award activity      
Outstanding at the beginning of the period (in shares) 1,368,880    
Granted (in shares) 269,660 232,450 313,550
Vested (in shares) (302,668)    
Forfeited (in shares) (22,322)    
Outstanding at the end of the period (in shares) 1,313,550 1,368,880  
Weighted-Average Grant Date Fair Value      
Granted (in dollars per share) $ 35.50 $ 40.19 $ 27.71
Other disclosure      
Fair value of restricted stock awards vested $ 9,800 $ 9,400 $ 1,800
Unrecognized compensation cost $ 17,100    
Weighted-average period of recognition of unrecognized compensation cost 2 years    
Stock Options      
Stock options activity      
Stock options outstanding (in shares) 0 0 35,730
Weighted average exercise price (in dollars per share)     $ 29.10
Exercised (in shares)     35,530
Exercised (in dollars per share)     $ 29.10
Forfeited (in shares)     200
Additional disclosures related to the Company's stock option program      
Intrinsic value of options exercised   $ 169 $ 330
Cash proceeds of options exercised   1,136 2,785
Tax benefit of options exercised   $ 22 $ 109
SARs      
Share-based compensation      
Granted to date (in shares) 0