EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Basic earnings per share
Net income attributable to OpenText	$ 229,862	$ 37,675	$ 314,230	$ 118,576
Basic earnings per share attributable to OpenText (in dollars per share)	$ 0.87	$ 0.14	$ 1.18	$ 0.44
Diluted earnings per share
Net income attributable to OpenText	$ 229,862	$ 37,675	$ 314,230	$ 118,576
Diluted earnings per share attributable to OpenText (in dollars per share)	$ 0.87	$ 0.14	$ 1.18	$ 0.44
Weighted-average number of shares outstanding (in ‘000’s)
Basic (in shares)	265,099	271,568	266,252	271,373
Effect of dilutive securities (in shares)	94	573	253	646
Diluted (in shares)	265,193	272,141	266,505	272,019
Excluded as anti-dilutive (in shares)	11,338	8,353	10,982	8,151

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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