Borrowings - Narrative (Details) - REA Group $ in Millions, $ in Millions	3 Months Ended
Sep. 30, 2021 AUD ($) facility	Sep. 30, 2021 USD ($) facility
Maximum
Debt Instrument [Line Items]
Unused capacity commitment fee percentage	40.00%
2022 Credit Facilities
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity	$ 600
Number of sub facilities \| facility	2	2
Increase to maximum borrowing capacity		$ 500
Operating income leverage ratio	350.00%
Interest coverage ratio	300.00%
2022 Credit facility — tranche 1
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity	$ 400
Debt instrument term	3 years
2022 Credit facility — tranche 1 \| Australian BBSY \| Maximum
Debt Instrument [Line Items]
Interest rate margin	2.10%
2022 Credit facility — tranche 1 \| Australian BBSY \| Minimum
Debt Instrument [Line Items]
Interest rate margin	1.00%
2022 Credit facility — tranche 2
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity	$ 200
Debt instrument term	4 years
2022 Credit facility — tranche 2 \| Australian BBSY \| Maximum
Debt Instrument [Line Items]
Interest rate margin	2.25%
2022 Credit facility — tranche 2 \| Australian BBSY \| Minimum
Debt Instrument [Line Items]
Interest rate margin	1.15%

Debt instrument interest coverage ratio one.

No definition available.

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- Definition

Operating income leverage ratio.

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Increase to Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Number of Facilities

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- 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

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	credit
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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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