Business combinations and capital reorganization (Details 1) - Zetta Health Analytics SA R$ in Thousands	Aug. 31, 2022 BRL (R$)
Acquisition-date fair value of total consideration transferred [abstract]
Cash and cash equivalents	R$ 857
Trade receivables	841
Other assets	420
Deferred tax assets	1,531
Refundable obligations	4,504
Intangible assets	6,332	[1]
Deferred tax liabilities	(2,152)
Other liabilities	(823)
Labor and social security obligations	(4,504)
Identifiable assets acquired (liabilities assumed)	R$ 7,006

[1] For the purchase price allocation, the following intangible assets were identified. The valuation techniques used for measuring the fair value of separately identified intangible assets acquired were as follows:      AssetsAmountMethodExpected amortization periodCustomer list2,212Multi-period excess earning method6.4 yearsTechnology4,120Relief from royalty5 years