Basis of preparation and presentation (Details)			12 Months Ended
		Dec. 16, 2016	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Jaborandi Agricola Ltda [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries		1.00%	99.99%	99.99%	99.99%
Imobiliaria Jaborandi [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Cremaq [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Engenho de Maracaju [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Araucaria [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Mogno [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Cajueiro [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Ceibo [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Flamboyant [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries			99.99%	99.99%	99.99%
Palmeiras [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries	[1]		99.99%	99.99%	99.99%
Moroti [Member]
Disclosure of subsidiaries [line items]
Ownership interest in subsidiaries	[1]		99.99%	99.99%
FIM Guardian Exclusive Fund [Member]
Disclosure of subsidiaries [line items]
Ownership interest in joint venture	[2]				100.00%

[1] Subsidiary incorporated during the Cresca spin-off process.

[2] During the year of 2018, the Company extinguished its exclusive investment fund (FIM Guardian).