Summary of Significant Accounting Policies - Liquidity - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Accounting Policies [Abstract]
Net loss attributable to Precigen	$ (43,354)	$ (38,766)	$ (99,352)	$ (99,475)
Accumulated deficit	$ (1,752,221)		$ (1,752,221)		$ (1,652,869)