Annual report pursuant to Section 13 and 15(d)

Share-based compensation - Option Plans (Details)

v3.22.0.1
Share-based compensation - Option Plans (Details)
12 Months Ended
Jul. 01, 2021
Jul. 01, 2020
Jul. 02, 2019
Jul. 05, 2018
Jun. 22, 2018
Jul. 03, 2017
Nov. 28, 2016
Aug. 11, 2016
Jun. 23, 2016
Mar. 16, 2015
GBP (£)
item
Dec. 31, 2021
shares
Share based compensation                      
Maximum value of option grants per participant | £                   £ 30,000  
Scheme limit, grants as a percentage of fully diluted share capital of the Company immediately following the IPO (as a percent)                   8.00%  
Scheme limit, automatic increase percentage (as a percent)                   4.00%  
Number of option schemes | item                   3  
RSU                      
Share based compensation                      
Exercise price | shares                     0.001
Vesting percentage (as a percent)                     25.00%
Vesting period (in years)                     4 years
Options granted in March, 2015 and on May 11, 2015                      
Share based compensation                      
Contractual term (in years)                   10 years  
Options granted in March, 2015 and on May 11, 2015 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)                     25.00%
Options granted in March, 2015 and on May 11, 2015 | Monthly installments over the following three years                      
Share based compensation                      
Vesting percentage (as a percent)                     75.00%
Vesting period (in years)                     3 years
Options granted in 2011, 2012, 2013, and April 2014                      
Share based compensation                      
Contractual term (in years)                     10 years
Non-executive director | Options granted on June 23, 2016 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)                 25.00%    
Vesting period (in years)                 1 year    
Non-executive director | Options granted on June 23, 2016 | Monthly installments over the following two years                      
Share based compensation                      
Vesting percentage (as a percent)                 75.00%    
Vesting period (in years)                 2 years    
Non-executive director | Options granted on August 11, 2016 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)               100.00%      
Vesting period (in years)               1 year      
Non-executive director | Options granted on November 28, 2016 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)             25.00%        
Vesting period (in years)             1 year        
Non-executive director | Options granted on November 28, 2016 | Monthly installments over the following two years                      
Share based compensation                      
Vesting percentage (as a percent)             75.00%        
Vesting period (in years)             2 years        
Non-executive director | Options granted on July 03, 2017 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)           100.00%          
Vesting period (in years)           1 year          
Non-executive director | Options granted on June 22, 2018 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)         100.00%            
Vesting period (in years)         1 year            
Non-executive director | Options granted in July 05, 2018 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)       25.00%              
Vesting period (in years)       1 year              
Non-executive director | Options granted in July 05, 2018 | Monthly installments over the following two years                      
Share based compensation                      
Vesting percentage (as a percent)       75.00%              
Vesting period (in years)       2 years              
Non-executive director | Options granted in July 2, 2019 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)     100.00%                
Vesting period (in years)     1 year                
Non-executive director | Options granted in July 1, 2020 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent)   100.00%                  
Vesting period (in years)   1 year                  
Non-executive director | Options granted in July 1, 2021 | First anniversary                      
Share based compensation                      
Vesting percentage (as a percent) 100.00%                    
Vesting period (in years) 1 year