XML 117 R106.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stockholders' Equity (Shares repurchased under the stock repurchase program) (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Equity, Class of Treasury Stock [Line Items]    
Treasury Stock, Value $ 104,502 $ 104,860