Note 8. Derivative Instruments - The Effect of Derivative Instruments on Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss)
Total Derivative Pre-Tax Gain (Loss) Recognized in Income	$ 1,013	$ (757)	$ 1,477	$ (1,585)
Foreign Exchange Contract \| Nonoperating Income (Expense)
Derivative Instruments, Gain (Loss)
Derivatives Not Designated as Hedging Instruments, Pre-Tax Gain (Loss) Recognized in Income	928	(263)	1,492	(1,081)
Cash Flow Hedging
Derivative Instruments, Gain (Loss)
Derivatives, Pre-Tax Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion	86	(494)	(20)	(504)
Cash Flow Hedging \| Foreign Exchange Contract \| Cost of Sales
Derivative Instruments, Gain (Loss)
Derivatives, Pre-Tax Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion	87	(494)	(30)	(504)
Cash Flow Hedging \| Foreign Exchange Contract \| Nonoperating Income (Expense)
Derivative Instruments, Gain (Loss)
Derivatives, Pre-Tax Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion	(1)	0	10	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ (1)	$ 0	$ 5	$ 0

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Paragraph 4C
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-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ 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)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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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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