Summary of Significant Accounting Policies - Summary of Adoption of IFRS 16 On Lease Liabilities (Detail) - BRL (R$) R$ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2019	Jan. 01, 2019
Accounting Policies [Abstract]
Operating lease commitments disclosed as of December 31, 2018	R$ 209,318
Discounted using the incremental borrowing rate of at the date of initial application	(60,099)
(Less): short-term leases recognized on a straight-line basis as expense	(725)
Lease liability recognized as of January 1, 2019	R$ 148,494	R$ 255,406	R$ 148,494

The amount of the expense relating to short-term leases accounted for applying paragraph 6 of IFRS 16. This expense need not include the expense relating to leases with a lease term of one month or less. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 53
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_c&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration