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Net Revenue from sales and Services (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Net Revenue from sales and Services      
Gross revenue R$ 1,421,091 R$ 1,066,479 R$ 1,111,739
Taxes (9,962) (8,455) (6,432)
Discounts (15,692) (14,302) (8,609)
Returns (131,157) (96,303) (99,070)
Net revenue from sales and services 1,264,280 947,419 997,628
Sales 1,229,827 914,266 967,374
Service 34,453 33,153 30,254
Net revenue 1,264,280 947,419 997,628
Total Content & EdTech      
Net Revenue from sales and Services      
Gross revenue 1,304,496 964,545 1,014,107
Taxes (7,835) (5,822) (4,171)
Discounts (15,692) (14,302) (8,609)
Returns (125,624) (93,708) (92,921)
Net revenue from sales and services 1,155,345 850,713 908,406
Net revenue 1,155,345 850,713 908,406
Learning Systems      
Net Revenue from sales and Services      
Gross revenue 878,468 568,522 608,200
Taxes (382) (219) (40)
Discounts (13,157) (14,302) (8,603)
Returns (78,468) (41,919) (17,553)
Net revenue from sales and services 786,461 512,082 582,004
Net revenue 786,461 512,082 582,004
Textbooks      
Net Revenue from sales and Services      
Gross revenue 228,094 212,708 308,298
Taxes (214) (1,608) (250)
Discounts (1,120) 0 0
Returns (31,401) (41,330) (72,488)
Net revenue from sales and services 195,359 169,770 235,560
Net revenue 195,359 169,770 235,560
Complementary Education Services      
Net Revenue from sales and Services      
Gross revenue 159,207 148,817 63,491
Taxes (193) (961) (17)
Discounts (1,415) 0 (6)
Returns (15,755) (10,459) (2,880)
Net revenue from sales and services 141,844 137,397 60,588
Net revenue 141,844 137,397 60,588
Other services      
Net Revenue from sales and Services      
Gross revenue 38,727 34,498 34,118
Taxes (7,046) (3,034) (3,864)
Net revenue from sales and services 31,681 31,464 30,254
Net revenue 31,681 31,464 30,254
Total Digital Services Platform      
Net Revenue from sales and Services      
Gross revenue 116,595 101,934 97,632
Taxes (2,127) (2,633) (2,261)
Returns (5,533) (2,595) (6,149)
Net revenue from sales and services 108,935 96,706 89,222
Net revenue 108,935 96,706 89,222
E-commerce      
Net Revenue from sales and Services      
Gross revenue 113,569 100,084 97,632
Taxes (1,873) (2,473) (2,261)
Returns (5,533) (2,595) (6,149)
Net revenue from sales and services 106,163 95,016 89,222
Net revenue 106,163 95,016 89,222
Other digital services      
Net Revenue from sales and Services      
Gross revenue 3,026 1,850 0
Taxes (254) (160) 0
Net revenue from sales and services 2,772 1,690 0
Net revenue R$ 2,772 R$ 1,690 R$ 0