Subsequent Event	9 Months Ended
Mar. 31, 2018
Subsequent Event [Abstract]
Subsequent Event	(16) Subsequent Event Debt Refinancing On April 17, 2018, we entered into an Amended and Restated Credit Agreement (the “Revolving Credit Agreement”) as borrower, with lenders MUFG Union Bank, N.A., as administrative agent, joint lead arranger, joint book runner, swing line lender and letter of credit issuer, and Westpac Banking Corporation, as syndication agent, joint lead arranger and joint book runner. The Revolving Credit Agreement, among other things, provides a senior unsecured revolving credit facility of $800 million, with an uncommitted option to increase the revolving credit facility by an additional $300 million. Additionally, on April 17, 2018, ResMed Limited entered into a Syndicated Facility Agreement (the “Term Credit Agreement”) as borrower, with lenders MUFG Union Bank, N.A., as administrative agent, joint lead arranger and joint book runner, and Westpac Banking Corporation, as syndication agent, joint lead arranger and joint book runner. The Term Credit Agreement, among other things, provides ResMed Limited a senior unsecured term credit facility of $200 million. The Revolving Credit Agreement and Term Credit Agreement each terminate on April 17, 2023, when all unpaid principal and interest under the loans must be repaid. The term credit facility will also amortize on a semi-annual basis, with a $6 million principal payment required on each such semi-annual amortization date. The outstanding principal amounts will bear interest at a rate equal to LIBOR plus 0.75% to 1.50% (depending on the then-applicable leverage ratio) or the Base Rate (as defined in the Revolving Credit Agreement and the Term Credit Agreement, as applicable) plus 0.0% to 0.50% (depending on the then-applicable leverage ratio). An applicable commitment fee of 0.100% to 0.175% (depending on the then-applicable leverage ratio) applies on the unused portion of the revolving credit facility. Our obligations under the Revolving Credit Agreement and Term Credit Agreement are guaranteed by us and certain of our direct and indirect U.S. subsidiaries, including, in each case, ResMed Corp., ResMed Motor Technologies Inc., Birdie Inc., Inova Labs, Inc., Brightree LLC, Brightree Services LLC, Brightree Home Health & Hospice LLC, and Brightree Patient Collections LLC. The Revolving Credit Agreement and Term Credit Agreement contain customary covenants, including, in each case, a financial covenant that requires that we maintain a maximum leverage ratio of funded debt to EBITDA (as defined in the Revolving Credit Agreement and Term Credit Agreement, as applicable). The entire principal amounts of the revolving credit facility and term credit facility, and, in each case, any accrued but unpaid interest may be declared immediately due and payable if an event of default occurs, as defined in the Revolving Credit Agreement and the Term Credit Agreement, as applicable. Events of default under the Revolving Credit Agreement and the Term Credit Agreement include, in each case, failure to make payments when due, the occurrence of a default in the performance of any covenants in the respective agreements or related documents, or certain changes of control of ResMed, the respective guarantors of the revolving credit facility and the term credit facility, ResMed Holdings Ltd and/or ResMed EAP Holdings LLC.

(16) Subsequent Event

Debt Refinancing

On April 17, 2018, we entered into an Amended and Restated Credit Agreement (the “Revolving Credit Agreement”) as borrower, with lenders MUFG Union Bank, N.A., as administrative agent, joint lead arranger, joint book runner, swing line lender and letter of credit issuer, and Westpac Banking Corporation, as syndication agent, joint lead arranger and joint book runner. The Revolving Credit Agreement, among other things, provides a senior unsecured revolving credit facility of $800 million, with an uncommitted option to increase the revolving credit facility by an additional $300 million.

Additionally, on April 17, 2018, ResMed Limited entered into a Syndicated Facility Agreement (the “Term Credit Agreement”) as borrower, with lenders MUFG Union Bank, N.A., as administrative agent, joint lead arranger and joint book runner, and Westpac Banking Corporation, as syndication agent, joint lead arranger and joint book runner. The Term Credit Agreement, among other things, provides ResMed Limited a senior unsecured term credit facility of $200 million.

The Revolving Credit Agreement and Term Credit Agreement each terminate on April 17, 2023, when all unpaid principal and interest under the loans must be repaid. The term credit facility will also amortize on a semi-annual basis, with a $6 million principal payment required on each such semi-annual amortization date. The outstanding principal amounts will bear interest at a rate equal to LIBOR plus 0.75% to 1.50% (depending on the then-applicable leverage ratio) or the Base Rate (as defined in the Revolving Credit Agreement and the Term Credit Agreement, as applicable) plus 0.0% to 0.50% (depending on the then-applicable leverage ratio). An applicable commitment fee of 0.100% to 0.175% (depending on the then-applicable leverage ratio) applies on the unused portion of the revolving credit facility.

Our obligations under the Revolving Credit Agreement and Term Credit Agreement are guaranteed by us and certain of our direct and indirect U.S. subsidiaries, including, in each case, ResMed Corp., ResMed Motor Technologies Inc., Birdie Inc., Inova Labs, Inc., Brightree LLC, Brightree Services LLC, Brightree Home Health & Hospice LLC, and Brightree Patient Collections LLC. The Revolving Credit Agreement and Term Credit Agreement contain customary covenants, including, in each case, a financial covenant that requires that we maintain a maximum leverage ratio of funded debt to EBITDA (as defined in the Revolving Credit Agreement and Term Credit Agreement, as applicable). The entire principal amounts of the revolving credit facility and term credit facility, and, in each case, any accrued but unpaid interest may be declared immediately due and payable if an event of default occurs, as defined in the Revolving Credit Agreement and the Term Credit Agreement, as applicable. Events of default under the Revolving Credit Agreement and the Term Credit Agreement include, in each case, failure to make payments when due, the occurrence of a default in the performance of any covenants in the respective agreements or related documents, or certain changes of control of ResMed, the respective guarantors of the revolving credit facility and the term credit facility, ResMed Holdings Ltd and/or ResMed EAP Holdings LLC.