v3.8.0.1

Corporate debt, Details of corporate debt (Details) $ in Thousands, € in Millions |  |  |  | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 27, 2017 USD ($) | Sep. 25, 2017 USD ($) | Dec. 22, 2014 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2017 USD ($) | Jul. 20, 2017 USD ($) | Jul. 20, 2017 EUR (€) | Dec. 03, 2014 USD ($) | Nov. 17, 2014 USD ($)
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Proceeds from corporate debt |  |  |  | $ 0 | $ 284,676 |  |  |  |  |
Repayment of debt |  |  |  | 70,147 | $ 306,198 |  |  |  |  |
Short-term corporate debt |  |  |  | $ 73,762 |  | $ 68,907 |  |  |  |
2019 Notes [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 255,000
Fixed interest rate |  |  |  |  |  |  |  |  |  | 7.00%
Maturity date |  |  |  | November 15, 2019 |  |  |  |  |  |
Credit Facility Tranche A [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  | $ 125,000 |
Fixed interest rate |  |  |  |  |  |  |  |  | 4.70% |
Maturity date |  |  |  | December 24, 2018 |  |  |  |  |  |
Proceeds from corporate debt |  |  | $ 125,000 |  |  |  |  |  |  |
Repayment of debt | $ 63,000 | $ 8,000 |  |  |  |  |  |  |  |
Short-term corporate debt |  |  |  |  |  | $ 54,000 |  |  |  |
Tranche A Eurodollar Rate Loans [Member] | LIBOR [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  |  |  | 2.75% |
Tranche A Base Rate Loans [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  |  |  | 1.75% |
Tranche A Base Rate Loans [Member] | Federal Funds Rate [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  |  |  | 0.50% |
Tranche A Base Rate Loans [Member] | LIBOR [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  |  |  | 1.00% |
2017 Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Maturity date |  |  |  | July 20, 2018 |  |  |  |  |  |
2017 Credit Facility [Member] | Top of range [member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  | $ 12,300 | € 10 |  |
2017 Credit Facility [Member] | EURIBOR [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  | 2.25% | 2.25% |  |
2017 Credit Facility [Member] | LIBOR [Member] |  |  |  |  |  |  |  |  |  |
Corporate debt [Abstract] |  |  |  |  |  |  |  |  |  |
Adjustment to interest rate |  |  |  |  |  |  | 2.25% | 2.25% |  |

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- Definition The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + 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
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- Definition The cash inflow from borrowings obtained. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_17_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_17_d&doctype=Standard -URIDate 2017-03-09 + Details
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