Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Equity (Narrative) (Details)

v3.2.0.727
Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2015
Jun. 30, 2014
Options granted   4,360  
Weighted average fair value of options granted   $ 25.51  
Number of options exercised   107,914 224,258
Increase in equity   $ 2,100 $ 2,400
Stock option term   10 years  
Vesting period   4 years  
Unrecognized compensation cost $ 26,500 $ 26,500  
Weighted average period for recognition   1 year 2 months 12 days  
Amounts reclassified from accumulated other comprehensive income 200 $ 1,311 $ (23)
Restricted Stock Units [Member]      
Options granted   80,685 108,080
Unrecognized compensation cost $ 52,300 $ 52,300  
Weighted average period for recognition   3 years