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Revenue (Details 1) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]      
Types of services or goods R$ 2,875,913 R$ 2,329,057 R$ 1,719,371
Tuition fees 2,640,598 2,131,776 1,559,094
Other 235,315 197,281 160,277
Timing of revenue recognition 2,875,913 2,329,057 1,719,371
Transferred over time 2,821,251 2,273,578 1,640,889
Transferred at a point in time 54,662 55,479 78,482
Undergrad [member]      
IfrsStatementLineItems [Line Items]      
Types of services or goods 2,511,018 2,037,889 1,498,408
Tuition fees 2,494,121 2,023,128 1,486,111
Other 16,897 14,761 12,297
Timing of revenue recognition 2,511,018 2,037,889 1,498,408
Transferred over time 2,494,121 2,024,373 1,486,111
Transferred at a point in time 16,897 13,516 12,297
Continuing Education [member]      
IfrsStatementLineItems [Line Items]      
Types of services or goods 146,827 108,806 72,983
Tuition fees 146,477 108,648 72,983
Other 350 158
Timing of revenue recognition 146,827 108,806 72,983
Transferred over time 146,827 108,806 72,983
Transferred at a point in time
Digital Services [member]      
IfrsStatementLineItems [Line Items]      
Types of services or goods 229,285 189,984 151,958
Tuition fees
Other 229,285 189,984 151,958
Timing of revenue recognition 229,285 189,984 151,958
Transferred over time 191,520 145,939 81,795
Transferred at a point in time 37,765 44,045 70,163
Elimination (inter-segment transactions) [member]      
IfrsStatementLineItems [Line Items]      
Types of services or goods (11,217) (7,622) (3,978)
Tuition fees
Other (11,217) (7,622) (3,978)
Timing of revenue recognition (11,217) (7,622) (3,978)
Transferred over time (11,217) (5,540)
Transferred at a point in time R$ (2,082) R$ (3,978)