Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v3.10.0.1
Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
IPO [Member] | Omnibus Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Completion date of initial public offering     July 25, 2017  
Cellectis (Parent) [Member] | Nonemployee Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividends $ 663 $ 69 $ 1,400 $ 69