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ACQUISITION OF SANGAMO THERAPEUTICS FRANCE S.A.S. - Summary of Non-controlling Interest (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Noncontrolling Interest [Roll Forward]        
Balance at December 31, 2020     $ (868)  
Fair value of additional shares acquired     (64)  
Loss attributable to non-controlling interest $ (5) $ (36) (11) $ (97)
Buy-out of non-controlling interest     943 $ 0
Balance at June 30, 2021 $ 0   $ 0