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Accounting Policies and Recent Accounting Pronouncement - Allowance for Doubtful Accounts (Details) - customer | 12 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015
Accounting Policies [Abstract] |  |
Percentage for Allowance Maintained on Bad-Debts | 100.00% |
Customers Accounting for More than Ten Percent of Accounts Receivable Balance | 0 | 0

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- Definition Customer Accounted for More than Ten Percentage Accounts receivables + References No definition available. + Details
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- Definition Percentage for Allowance Maintained on Bad-Debts + References No definition available. + Details
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Namespace Prefix: | otex_
Data Type: | num:percentItemType
Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration