XML 64 R55.htm IDEA: XBRL DOCUMENT v3.7.0.1
Employee Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Employee Benefit Plan (Textual) [Abstract]      
Employees annual compensation 3.00%    
Safe Harbor match $ 0.7 $ 0.6 $ 0.4
Discretionary matching contributions 0.9 0.8 0.5
No additional discretionary contributions $ 0.0 $ 0.0 $ 0.0