; ForgeRock, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Narrative (Details)

v3.21.2
Stock-based Compensation - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
purchase_period
shares
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
Dec. 31, 2018
shares
Dec. 31, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock-based compensation expense | $   $ 3,109 $ 1,404 $ 6,396 $ 4,950    
Unrecognized compensation expense | $ $ 28,700 $ 28,700   $ 28,700      
Unrecognized compensation expense, period for recognition       3 years 2 months 26 days      
Shares granted (in shares)       2,443,785      
2021 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Additional shares available for authorization (in shares) 14,913,309            
Annual increase (in shares) 8,085,000            
Percentage of outstanding common stock 5.00%            
Class A common stock | 2021 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares available for issuance (in shares) 7,276,000 7,276,000   7,276,000      
Stock appreciation rights              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued (in shares)       0      
Restricted stock units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued (in shares)           111,111 240,000
Stock-based compensation expense | $ $ 900            
Employee Stock | 2021 Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares available for issuance (in shares) 1,617,000 1,617,000   1,617,000      
Annual increase (in shares) 1,617,000            
Percentage of outstanding common stock 1.00%            
Shares granted (in shares)       0      
Offering period 12 months            
Number of purchase periods | purchase_period 2            
Purchase period 6 months            
Purchase price of common stock, percentage of fair market value 85.00%