Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Assumptions used in Black-Scholes Model (Detail)

v3.7.0.1
Stock-Based Compensation - Summary of Assumptions used in Black-Scholes Model (Detail)
6 Months Ended
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected dividend yield 0.00%
Cellectis (Parent) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected dividend yield 0.00%
Risk-free interest rate, minimum 2.16%
Risk-free interest rate, maximum 2.31%
Expected volatility, minimum 37.50%
Expected volatility, maximum 42.30%
Minimum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 1.25%
Expected volatility 27.40%
Expected life (in years) 1 year 2 months 19 days
Minimum [Member] | Cellectis (Parent) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected life (in years) 7 years 5 months 5 days
Maximum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 2.31%
Expected volatility 42.30%
Expected life (in years) 10 years
Maximum [Member] | Cellectis (Parent) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected life (in years) 10 years