XML 56 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Organization and Summary of Significant Accounting Policies - Anti-dilutive Securities (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable (shares) 340 557 394 684
On exercise of options where exercise price is greater than average market value for the period        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable (shares) 240 469 278 640
On exercise of options        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable (shares) 100 88 116 44
On the settlement of employee stock purchase plan shares (1)        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable (shares) 0 0 0 0