XML 88 R69.htm IDEA: XBRL DOCUMENT v3.3.1.900
Benefit Plan (Details) - USD ($)
12 Months Ended
Oct. 30, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum value of shares that can be purchased $ 25,000      
401 (K) Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee contribution, statutory limitation   $ 18,000 $ 17,500  
Contributions by employer   $ 0 $ 0 $ 0
Employee stock purchase plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Purchase price of stock as a percentage of fair market value 85.00%      
Shares reserved for future issuance   629,844