Special Charges (Recoveries) (Schedule Of Restructuring Reserve) (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Fiscal 2015 Restructuring Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 5,968	$ 0
Accruals and adjustments	22,179	8,218
Cash payments	(19,651)	(2,196)
Foreign exchange	(305)	(54)
Ending Balance	8,191	5,968
Fiscal 2015 Restructuring Plan \| Workforce Reduction
Restructuring Reserve [Roll Forward]
Beginning Balance	3,842	0
Accruals and adjustments	17,249	6,015
Cash payments	(17,290)	(2,135)
Foreign exchange	(656)	(38)
Ending Balance	3,145	3,842
Fiscal 2015 Restructuring Plan \| Facility Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	2,126	0
Accruals and adjustments	4,930	2,203
Cash payments	(2,361)	(61)
Foreign exchange	351	(16)
Ending Balance	5,046	2,126
OpenText/GXS Restructuring Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	7,282	11,079
Accruals and adjustments	(3,427)	8,163
Cash payments	(2,363)	(11,522)
Foreign exchange	(771)	(438)
Ending Balance	721	7,282
OpenText/GXS Restructuring Plan \| Workforce Reduction
Restructuring Reserve [Roll Forward]
Beginning Balance	2,846	5,051
Accruals and adjustments	(1,878)	5,244
Cash payments	(648)	(6,848)
Foreign exchange	(205)	(601)
Ending Balance	115	2,846
OpenText/GXS Restructuring Plan \| Facility Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	4,436	6,028
Accruals and adjustments	(1,549)	1,159
Cash payments	(1,715)	(2,914)
Foreign exchange	(566)	163
Ending Balance	$ 606	4,436
OpenText/GXS Restructuring Plan \| Other
Restructuring Reserve [Roll Forward]
Accruals and adjustments		1,760
Cash payments		$ (1,760)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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