Related Party Transactions	3 Months Ended
Jun. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	18. Related Party Transactions eRx Option Agreement Prior to the creation of the Joint Venture, we entered into an option agreement to acquire eRx (the “Option Agreement”). Under the terms of the Option Agreement, the option to acquire eRx would only become exercisable at any such time that McKesson owns (directly or indirectly), in the aggregate, less than 5% of the outstanding units of the Joint Venture. Subsequent to the Merger, the Option became exercisable and was exercised on May 1, 2020. See Note 4, Business Combinations, for additional information. Transition Services Agreements In connection with the creation of the Joint Venture, we entered into transition services agreements with eRx. Under the agreements, we provided certain transition services eRx in exchange for specified fees. Prior to the acquisition of eRx, we recognized $283 and $0 in transition fee income during the three months ended June 30, 2020 and 2019, respectively. The amounts received are included in Other, net in the consolidated statement of operations. Employer Healthcare Program Agreement with Equity Healthcare Effective January 1, 2014, we entered into an employer health program agreement with Equity Healthcare LLC (“Equity Healthcare”), an affiliate of Blackstone, whereby Equity Healthcare provides certain negotiating, monitoring and other services in connection with our health benefit plans. In consideration for Equity Healthcare’s services, we pay a fee of $1.00 per participating employee per month. Term Loans Held by Related Party During the period from June 17, 2016 (inception) to March 31, 2017, certain investment funds managed by GSO Capital Partners LP (the “GSO-managed funds”) held a portion of the term loans under our Senior Credit Facilities. GSO Advisor Holdings LLC (“GSO Advisor”) is the general partner of GSO Capital Partners LP and Blackstone, indirectly through its subsidiaries, holds all of the issued and outstanding equity interests of GSO Advisor. As of June 30, 2020 and March 31, 2020, the GSO-managed funds held $161,367 and $151,301, respectively, in principal amount of the Senior Credit Facilities (none of which is classified within current portion of long-term debt). Transactions with Blackstone Portfolio Companies We provide various services to, and purchase services from, certain Blackstone portfolio companies under contracts that were executed in the normal course of business. We recognized revenue of approximately $1,043 and $0 related to services provided to Blackstone portfolio companies during the three months ended June 30, 2020 and 2019, respectively. We paid Blackstone portfolio companies approximately $5,292 and $0 related to services provided during the three months ended June 30, 2020 and 2019, respectively.

18. Related Party Transactions

eRx Option Agreement

Prior to the creation of the Joint Venture, we entered into an option agreement to acquire eRx (the “Option Agreement”). Under the terms of the Option Agreement, the option to acquire eRx would only become exercisable at any such time that McKesson owns (directly or indirectly), in the aggregate, less than 5% of the outstanding units of the Joint Venture. Subsequent to the Merger, the Option became exercisable and was exercised on May 1, 2020. See Note 4, Business Combinations, for additional information.

Transition Services Agreements

In connection with the creation of the Joint Venture, we entered into transition services agreements with eRx. Under the agreements, we provided certain transition services eRx in exchange for specified fees. Prior to the acquisition of eRx, we recognized $283 and $0 in transition fee income during the three months ended June 30, 2020 and 2019, respectively. The amounts received are included in Other, net in the consolidated statement of operations.

Employer Healthcare Program Agreement with Equity Healthcare

Effective January 1, 2014, we entered into an employer health program agreement with Equity Healthcare LLC (“Equity Healthcare”), an affiliate of Blackstone, whereby Equity Healthcare provides certain negotiating, monitoring and other services in connection with our health benefit plans. In consideration for Equity Healthcare’s services, we pay a fee of $1.00 per participating employee per month.

Term Loans Held by Related Party

During the period from June 17, 2016 (inception) to March 31, 2017, certain investment funds managed by GSO Capital Partners LP (the “GSO-managed funds”) held a portion of the term loans under our Senior Credit Facilities. GSO Advisor Holdings LLC (“GSO Advisor”) is the general partner of GSO Capital Partners LP and Blackstone, indirectly through its subsidiaries, holds all of the issued and outstanding equity interests of GSO Advisor. As of June 30, 2020 and March 31, 2020, the GSO-managed funds held $161,367 and $151,301, respectively, in principal amount of the Senior Credit Facilities (none of which is classified within current portion of long-term debt).

Transactions with Blackstone Portfolio Companies

We provide various services to, and purchase services from, certain Blackstone portfolio companies under contracts that were executed in the normal course of business. We recognized revenue of approximately $1,043 and $0 related to services provided to Blackstone portfolio companies during the three months ended June 30, 2020 and 2019, respectively. We paid Blackstone portfolio companies approximately $5,292 and $0 related to services provided during the three months ended June 30, 2020 and 2019, respectively.