Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-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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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

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- Definition

The premium (cost) of a hedge, net of any cash received on settlement during the period.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

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- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

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- Definition

Amount, after tax, of cumulative translation adjustment attributable to gain (loss) on foreign currency derivatives that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32211-110900

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Derivative Instruments and Hedging Activities (Details) € in Thousands, CAD in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 CAD	Dec. 31, 2016 EUR (€)	Dec. 31, 2015 EUR (€)
Derivative instruments
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 1,579,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	2,329,000
Net investment \| 6 3/4% Notes \| Designated Hedging Instruments
Derivative instruments
Notional amount of derivatives \| €				€ 103,682		€ 29,649	€ 34,331
Cumulative net investment hedge gains (losses) recorded in accumulated other comprehensive items, net	3,188,000
Foreign exchange contracts
Derivative instruments
Net cash payments from foreign currency forward contracts	(9,073,000)	$ 0	$ 22,705,000
Purchases \| Foreign exchange contracts
Derivative instruments
Notional amount of derivatives		$ 0		135,000
Purchases \| Foreign Exchange Forward - Option Two [Member]
Derivative instruments
Notional amount of derivatives	114,390,000
Purchases \| Foreign Exchange Forward - Option One [Member]
Derivative instruments
Notional amount of derivatives	138,823,000
Sales \| Foreign exchange contracts
Derivative instruments
Derivative, Amount of Hedged Item	$ 160,757,000
Sales \| Foreign Exchange Forward - Option Two [Member]
Derivative instruments
Derivative, Amount of Hedged Item \| €				€ 96,150
Sales \| Foreign Exchange Forward - Option One [Member]
Derivative instruments
Derivative, Amount of Hedged Item \| CAD					CAD 176,000
6 3/4% Notes
Derivative instruments
Stated interest rate (as a percent)	6.75%			6.75%	6.75%