Annual report pursuant to Section 13 and 15(d)

Share Repurchase Program (Details)

v3.6.0.2
Share Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Mar. 01, 2016
Share Repurchase Program    
Share repurchase program, authorized amount   $ 50,000
Number of shares repurchased (in shares) 673,626  
Share repurchase cost $ 22,296  
Average price per share (in dollars per share) $ 33.10