XML 75 R55.htm IDEA: XBRL DOCUMENT
v3.25.2

Investments - Schedule of Changes In Equity Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Equity Method Investments [Roll Forward] |  |  |
Balance at the beginning of the period | $ 151,227 | $ 146,537 |
Additions to investments | 6,416 | 12,765 |
Observable price adjustments on non-marketable equity securities |  | 2,315 |
Impairment of investments | (11,742) | (4,963) |
Realized gains on marketable and non-marketable equity securities | 389 |  |
Proceeds from exits of investments | (4,628) | (1,000) |
Unrealized gains on marketable equity securities | 1,054 | (1,397) |
Gain attributable to equity method investments | 3,644 | (1,848) | $ (7,265)
Foreign currency translation adjustments | 6,540 | (1,182) |
Carrying value at the end of the period | 152,900 | 151,227 | 146,537
Non-marketable securities |  |  |
Equity Method Investments [Roll Forward] |  |  |
Balance at the beginning of the period | 73,739 | 68,748 |
Additions to investments | 5,778 | 8,640 |
Observable price adjustments on non-marketable equity securities |  | 2,315 |
Impairment of investments | (11,742) | (4,963) |
Realized gains on marketable and non-marketable equity securities | 389 |  |
Proceeds from exits of investments | (4,628) | (1,000) |
Unrealized gains on marketable equity securities | 0 | 0 |
Gain attributable to equity method investments | 0 | 0 |
Foreign currency translation adjustments | 106 | (1) |
Carrying value at the end of the period | 63,642 | 73,739 | 68,748
Marketable securities |  |  |
Equity Method Investments [Roll Forward] |  |  |
Balance at the beginning of the period | 12,026 | 12,423 |
Additions to investments | 0 | 1,000 |
Observable price adjustments on non-marketable equity securities |  | 0 |
Impairment of investments | 0 | 0 |
Realized gains on marketable and non-marketable equity securities | 0 |  |
Proceeds from exits of investments | 0 | 0 |
Unrealized gains on marketable equity securities | 1,054 | (1,397) |
Gain attributable to equity method investments | 0 | 0 |
Foreign currency translation adjustments | 0 | 0 |
Carrying value at the end of the period | 13,080 | 12,026 | 12,423
Equity method investments |  |  |
Equity Method Investments [Roll Forward] |  |  |
Balance at the beginning of the period | 65,462 | 65,366 |
Additions to investments | 638 | 3,125 |
Observable price adjustments on non-marketable equity securities |  | 0 |
Impairment of investments | 0 | 0 |
Realized gains on marketable and non-marketable equity securities | 0 |  |
Proceeds from exits of investments | 0 | 0 |
Unrealized gains on marketable equity securities | 0 | 0 |
Gain attributable to equity method investments | 3,644 | (1,848) |
Foreign currency translation adjustments | 6,434 | (1,181) |
Carrying value at the end of the period | $ 76,178 | $ 65,462 | $ 65,366

X
- Definition Additional Equity Investments + References No definition available. + Details
Name: | rmd_AdditionalEquityInvestments
Namespace Prefix: | rmd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity Investments + References No definition available. + Details
Name: | rmd_EquityInvestments
Namespace Prefix: | rmd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Equity Method Investments + References No definition available. + Details
Name: | rmd_EquityMethodInvestmentsRollForward
Namespace Prefix: | rmd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Observable price adjustments on non-marketable equity securities. + References No definition available. + Details
Name: | rmd_ObservablePriceAdjustmentsOnNonMarketableEquitySecurities
Namespace Prefix: | rmd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 + Details
Name: | us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-4 + Details
Name: | us-gaap_EquitySecuritiesFvNiRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized gain (loss) on investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_MarketableSecuritiesUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net cash paid (received) associated with the acquisition or disposal of all investments, including securities and other assets. + References No definition available. + Details
Name: | us-gaap_PaymentsForProceedsFromInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Adjustments to temporary equity resulting from foreign currency translation adjustments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479887/480-10-S45-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1 + Details
Name: | us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=rmd_NonMarketableSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=rmd_MarketableSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_EquityMethodInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |