Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v3.8.0.1
Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 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 $ 712 $ 0