Foreign Exchange Forward Contracts (Narratives) (Details)	3 Months Ended
Sep. 30, 2018 USD ($) Contract	Sep. 30, 2017 USD ($)
Derivative [Line Items]
Foreign currency transactions realized gain (loss)	$ 200,000	$ (600,000)
Not Designated as Hedging Instrument \| Forward Foreign Currency Contracts
Derivative [Line Items]
Number of derivative financial instruments \| Contract	0
Notional principal amount of forward foreign currency contracts		$ 9,600,000
Maximum maturities for contracts		90 days

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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The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 1
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-SubTopic 20
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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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