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

Hedging transactions and derivative financial instruments.

+ References

No definition available.

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Period of cash flow hedges.

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No definition available.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 20
-Section 50
-Paragraph 3
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
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-Name Accounting Standards Codification
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- Definition

The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Derivative Instruments and Hedging - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Hedging Transactions And Derivative Financial Instruments [Line Items]
Period of cash flow hedges	12 months
Gain (loss) on ineffectiveness in earnings	$ 0	$ 0	$ 0
Foreign Exchange Forward \| Cash Flow Hedges
Hedging Transactions And Derivative Financial Instruments [Line Items]
Notional amount of outstanding contracts	24,108,418.88	18,649,479.65
Fair value of outstanding contracts liability		$ 1,800,000
Maximum \| Foreign Exchange Forward \| Cash Flow Hedges
Hedging Transactions And Derivative Financial Instruments [Line Items]
Fair value of outstanding contracts asset	$ 100,000