Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Restricted Stock Units and Restricted Stock Awards - Unrecognized Share-based Compensation Expense (Details)

v3.19.3
Stockholders' Equity - Restricted Stock Units and Restricted Stock Awards - Unrecognized Share-based Compensation Expense (Details) - Restricted stock units/awards
$ in Millions
9 Months Ended
Sep. 30, 2019
USD ($)
shares
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Abstract]  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options | $ $ 1.4
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number | shares 361,173