UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2019		0	51,840,000
Beginning balance at Dec. 31, 2019	$ 333,686	$ 0	$ 5	$ (3,885)	$ 560,890	$ (192,264)	$ (31,060)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	1,601				1,601
Issuance of stock, net of forfeitures (in shares)			(991,000)
Shares withheld for taxes (in shares)			(40,000)
Shares withheld for taxes	(220)				(220)
Issuance of common stock under employee stock purchase plan (in shares)			84,000
Issuance of common stock under employee stock purchase plan	197				197
Adjustment of NCI to redemption value					(396)	396
Net loss attributable to AgroFresh Solutions, Inc.	(20,598)					(20,598)
Comprehensive loss	(9,771)						(9,771)
Ending balance (in shares) at Jun. 30, 2020		0	52,875,000
Ending balance at Jun. 30, 2020	304,895	$ 0	$ 5	(3,885)	562,072	(212,466)	(40,831)
Beginning balance (in shares) at Dec. 31, 2019		0	51,840,000
Beginning balance at Dec. 31, 2019	333,686	$ 0	$ 5	(3,885)	560,890	(192,264)	(31,060)
Increase (Decrease) in Stockholders' Equity
Adjustment of NCI to redemption value	1,139
Ending balance (in shares) at Dec. 31, 2020		0	53,092,000
Ending balance at Dec. 31, 2020	272,393	$ 0	$ 5	(3,885)	552,776	(244,836)	(31,667)
Beginning balance (in shares) at Mar. 31, 2020		0	51,836,000
Beginning balance at Mar. 31, 2020	320,324	$ 0	$ 5	(3,885)	561,298	(195,912)	(41,182)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	958				958
Issuance of stock, net of forfeitures (in shares)			(965,000)
Shares withheld for taxes (in shares)			(10,000)
Shares withheld for taxes	(54)				(54)
Issuance of common stock under employee stock purchase plan (in shares)			84,000
Issuance of common stock under employee stock purchase plan	197				197
Adjustment of NCI to redemption value					(327)	327
Net loss attributable to AgroFresh Solutions, Inc.	(16,881)					(16,881)
Comprehensive loss	351						351
Ending balance (in shares) at Jun. 30, 2020		0	52,875,000
Ending balance at Jun. 30, 2020	304,895	$ 0	$ 5	(3,885)	562,072	(212,466)	(40,831)
Beginning balance (in shares) at Dec. 31, 2020		0	53,092,000
Beginning balance at Dec. 31, 2020	272,393	$ 0	$ 5	(3,885)	552,776	(244,836)	(31,667)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	1,082				1,082
Issuance of stock, net of forfeitures (in shares)			(258,000)
Shares withheld for taxes (in shares)			(121,000)
Shares withheld for taxes	(266)				(266)
Issuance of common stock under employee stock purchase plan (in shares)			92,000
Issuance of common stock under employee stock purchase plan	163				163
Convertible preferred dividend	(12,332)				(12,332)
Adjustment of NCI to redemption value	238				(238)	238
Net loss attributable to AgroFresh Solutions, Inc.	(8,837)					(8,837)
Comprehensive loss	(6,157)						(6,157)
Ending balance (in shares) at Jun. 30, 2021		0	52,806,000
Ending balance at Jun. 30, 2021	246,046	$ 0	$ 5	(3,885)	541,185	(253,435)	(37,824)
Beginning balance (in shares) at Mar. 31, 2021		0	53,051,000
Beginning balance at Mar. 31, 2021	268,962	$ 0	$ 5	(3,885)	547,480	(236,413)	(38,225)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	330				330
Issuance of stock, net of forfeitures (in shares)			(237,000)
Shares withheld for taxes (in shares)			(100,000)
Shares withheld for taxes	(223)				(223)
Issuance of common stock under employee stock purchase plan (in shares)			92,000
Issuance of common stock under employee stock purchase plan	163				163
Convertible preferred dividend	(6,327)				(6,327)
Adjustment of NCI to redemption value					(238)	238
Net loss attributable to AgroFresh Solutions, Inc.	(17,260)					(17,260)
Comprehensive loss	401						401
Ending balance (in shares) at Jun. 30, 2021		0	52,806,000
Ending balance at Jun. 30, 2021	$ 246,046	$ 0	$ 5	$ (3,885)	$ 541,185	$ (253,435)	$ (37,824)