Accounts Payable And Accrued Liabilities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Accounts Payable and Accrued Liabilities [Abstract]
Present value of asset retirement obligation	$ 5.9	$ 4.3
Undiscounted value of asset retirement obligation	$ 6.3	$ 4.8

The present value of a liability for an asset retirement obligation associated with the disposal or retirement of a tangible long-lived asset that results from acquisition, construction or development, or the normal operations of a long-lived asset including obligations from operating leases.

No definition available.

Name:	otex_AssetRetirementObligationPresentValue
Namespace Prefix:	otex_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant