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Income Tax - Disclosure Of Analysis Other Comprehensive Income By Item (Detail) - BRL (R$)
R$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of analysis of other comprehensive income by item [abstract]          
Foreign exchange variation of investees located abroad R$ 56,560 R$ 1,325 R$ 6,823 R$ 18,645 R$ 2,034
Gains (losses) on net investment hedge (85,600) (1,277) (10,543) (26,508) (3,124)
Changes in the fair value of financial assets at fair value 52,467 (2,021) 1,058 6,727 275
Other comprehensive income, before tax 23,427 (1,973) (2,662) (1,136) (815)
Foreign exchange variation of investees located abroad     0 0 0
Gains (losses) on net investment hedge 29,104 434 3,410 9,013 738
Changes in the fair value of financial assets at fair value (20,977) 838 (360) (2,567) (65)
Income tax relating to components of other comprehensive income 8,128 1,273 3,051 6,446 673
Foreign exchange variation of investees located abroad 56,560 1,325 6,823 18,645 2,034
Gains (losses) on net investment hedge (56,496) (843) (7,133) (17,495) (2,386)
Changes in the fair value of financial assets at fair value 31,490 (1,183) 698 4,160 210
Other comprehensive income R$ 31,554 R$ (701) R$ 388 R$ 5,310 R$ (142)