Debt Instrument, Issuance Price, Percentage of Face Value

No definition available.

Name:	otex_DebtInstrumentIssuancePricePercentageofFaceValue
Namespace Prefix:	otex_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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LONG-TERM DEBT - Senior Unsecured Fixed Rate Notes (Details) - USD ($)		12 Months Ended
	Mar. 05, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Feb. 18, 2020	Dec. 20, 2016	May 31, 2016	Jan. 15, 2015
Debt Instrument [Line Items]
Long-term debt		$ 4,227,500,000	$ 2,637,500,000
Loss on extinguishment of debt		17,854,000	0	$ 0
Senior Notes \| Senior Notes 2030
Debt Instrument [Line Items]
Debt instrument face amount					$ 900,000,000
Debt instrument stated interest rate					4.125%
Interest expense		13,700,000
Long-term debt		900,000,000	0
Senior Notes \| Senior Notes 2028
Debt Instrument [Line Items]
Debt instrument face amount					$ 900,000,000
Debt instrument stated interest rate					3.875%
Interest expense		12,900,000
Long-term debt		900,000,000	0
Senior Notes \| Senior Notes 2026
Debt Instrument [Line Items]
Debt instrument face amount						$ 250,000,000	$ 600,000,000
Debt instrument stated interest rate							5.875%
Interest expense		49,900,000	49,900,000	49,900,000
Debt premium issue price percentage						102.75%
Long-term debt		850,000,000	850,000,000
Senior Notes \| Senior Notes 2023
Debt Instrument [Line Items]
Debt instrument face amount								$ 800,000,000
Debt instrument stated interest rate								5.625%
Interest expense		30,600,000	45,000,000.0	$ 45,000,000
Long-term debt		$ 0	$ 800,000,000
Debt redeemed, percentage of principal amount	101.406%
Loss on extinguishment of debt	$ 17,900,000