XML 91 R74.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stock-Based Compensation (Schedule Of Weighted-Average Fair Value Assumptions) (Details)
12 Months Ended
Dec. 31, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average fair value $ 7.80
Expected volatility 60.00%
Expected dividend yield 0.00%
Minimum [Member] | Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 0.76%
Derived term in years 3 years
Maximum [Member] | Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 1.46%
Derived term in years 4 years