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Long-term debt (Secured Loan Agreement) (Details) - Secured Debt - Subsidiaries	12 Months Ended
	Dec. 31, 2019
Itaú BBA International plc
Debt Instrument [Line Items]
Annual Interest Rate	5.26%
Banco Santander (Brasil) S.A., Cayman Islands Branch
Debt Instrument [Line Items]
Annual Interest Rate	4.7863%
LIBOR | Citibank N.A.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.439%
LIBOR | Bank of America N.A.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	4.00%
LIBOR | JP Morgan Chase Bank, N.A.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.92%

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- Definition

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+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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