XML 60 R43.htm IDEA: XBRL DOCUMENT v3.19.1
Organization and Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share, Unvested Restricted Stock Awards (Detail) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Excluded unvested restricted stock awards 981,783 225,324 437,443
Unvested Restricted Stock Awards Excluded from EPS [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Excluded unvested restricted stock awards 41,667 132,826 113,889