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ACQUISITION OF SANGAMO THERAPEUTICS FRANCE S.A.S. - Summary of Non-controlling Interest (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Noncontrolling Interest [Roll Forward]    
Balance at December 31, 2020 $ (868)  
Fair value of additional shares acquired (64)  
Loss attributable to non-controlling interest (6) $ (61)
Balance at March 31, 2021 $ (938)