Number of Banks Transacted With for Interest Rate Swap Agreements

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- Definition

Term of Interest Rate Derivatives

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

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Fixed interest rate related to the interest rate derivative.

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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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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Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cash inflow (outflow) from financing activities classified as other.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585

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-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585

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Derivatives (Details 1)	1 Months Ended	12 Months Ended
Derivatives (Details 1)	Apr. 30, 2012 USD ($) Bank	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Apr. 28, 2017 USD ($) Bank
Derivative [Line Items]
Maximum Remaining Maturity of Foreign Currency Derivatives		2 years
Other		$ (21,090,000)	$ 4,771,000	$ 9,850,000
Derivative, Net Hedge Ineffectiveness Gain (Loss)		0	0
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Other		18,256,000	5,221,000
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		299,000	(342,000)
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		460,000	174,000
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(161,000)	(516,000)
Not Designated as Hedging Instrument [Member] \| Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (16,813,000)	$ 2,297,000
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Term of Interest Rate Derivatives	5 years
Number of Banks Transacted With for Interest Rate Swap Agreements \| Bank	3				1
Derivative, Amount of Hedged Item	$ 100,000,000
Derivative, Fixed Interest Rate					1.92%
London Interbank Offered Rate (LIBOR) [Member] \| Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Amount of Hedged Item					$ 100,000,000
London Interbank Offered Rate (LIBOR) [Member] \| Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.03%