XML 128 R114.htm IDEA: XBRL DOCUMENT v3.8.0.1

Bank loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Bank Loans [Abstract]
Beginning balance	$ 55,000	$ 285,302	$ 40,000
New loans	341,215	200,500	344,503
Disbursements	(300,000)	(442,957)	(90,000)
Exchange difference	0	12,155	(9,201)
Final balance	$ 96,215	$ 55,000	$ 285,302

X

- Definition

Represents the proceedings from new loans.

+ References

No definition available.

+ Details

Name:	cik0001013131_AdditionsForBorrowings
Namespace Prefix:	cik0001013131_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the amount of disbursements.

+ References

No definition available.

+ Details

Name:	cik0001013131_DisbursementsOfBorrowings
Namespace Prefix:	cik0001013131_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	cik0001013131_DisclosureOfBankLoansAbstract
Namespace Prefix:	cik0001013131_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of exchange differences pertaining to borrowings.

+ References

No definition available.

+ Details

Name:	cik0001013131_ExchangeDifferenceOfBorrowings
Namespace Prefix:	cik0001013131_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of current loans received and the current portion of non-current loans received. [Refer: Loans received]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant