Leases (Details Narrative) R$ in Thousands	12 Months Ended
Leases (Details Narrative) R$ in Thousands	Dec. 31, 2025 BRL (R$) Number	Dec. 31, 2024 BRL (R$)
IfrsStatementLineItems [Line Items]
Sublease revenue	R$ 69,508	R$ 62,109
Interest paid	1,360,929	1,175,350
Contract cancellation penalties	R$ 37,000	R$ 287,000
Average incremental rate	15.32%	11.88%
Rental expense	R$ 29,688	R$ 30,050
Sale Of Towers [Member]
IfrsStatementLineItems [Line Items]
Sales	2,651,247
Deferred revenue	R$ 1,088,390
Sale Of Towers [Member] \| Bottom of range [member]
IfrsStatementLineItems [Line Items]
Finance lease liabilities interest rate	11.01%
Sale Of Towers [Member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Finance lease liabilities interest rate	17.08%
Sale Of Towers [Member] \| TIM Celular SA [Member]
IfrsStatementLineItems [Line Items]
Maximum number of towers owned \| Number	6,481
Owned amount of telecommunications towers	R$ 3,000,000
L T Amazonas [Member]
IfrsStatementLineItems [Line Items]
Finance lease receivables interest rate	12.56%
Finance lease liabilities interest rate	14.44%