Equity Offering	3 Months Ended
Mar. 31, 2021
Equity [Abstract]
Equity Offering	Note 3. Equity Offering On March 15, 2021, the Sponsors completed an underwritten public equity offering of 6,900,000 of our Class A shares, inclusive of the underwriters’ option to purchase up to 900,000 of additional shares, at a price of $21.00 per Class A share, less underwriting discounts. The Sponsors received net proceeds from the offering of $139.9 million, after deducting underwriting discounts; we did not receive any proceeds in the offering. The offering was conducted pursuant to a registration rights agreement among us and the Sponsors. The Class A Shares sold in the offering were obtained by the Sponsors by exchanging to us 6,900,000 of their Class B Units in the Partnership, together with an equal number of our Class B Shares. As a result of the exchange, Hess Midstream LP’s consolidated ownership in the Partnership increased from 6.3% at December 31, 2020 to 8.8% at March 31, 2021. Hess Midstream LP retained control in the Partnership based on the delegation of control provisions, as described above in Note 2, Basis of Presentation. As a result of the transaction, we recognized an adjustment to the carrying amount of noncontrolling interest and Class A shareholders’ capital balance of $31.8 million to reflect the change in ownership interest. In addition, we recognized an additional deferred tax asset of $26.4 million for the temporary differences related to the change between carrying amount and tax basis of our investment in the Partnership. The effect of recognizing the additional deferred tax asset was included in Class A shareholders’ equity balance in the accompanying consolidated statement of changes in partners’ capital due to the transaction being characterized as a transaction among or with shareholders.

Equity Offering

3 Months Ended

Mar. 31, 2021

Note 3. Equity Offering

On March 15, 2021, the Sponsors completed an underwritten public equity offering of 6,900,000 of our Class A shares, inclusive of the underwriters’ option to purchase up to 900,000 of additional shares, at a price of $21.00 per Class A share, less underwriting discounts. The Sponsors received net proceeds from the offering of $139.9 million, after deducting underwriting discounts; we did not receive any proceeds in the offering. The offering was conducted pursuant to a registration rights agreement among us and the Sponsors. The Class A Shares sold in the offering were obtained by the Sponsors by exchanging to us 6,900,000 of their Class B Units in the Partnership, together with an equal number of our Class B Shares. As a result of the exchange, Hess Midstream LP’s consolidated ownership in the Partnership increased from 6.3% at December 31, 2020 to 8.8% at March 31, 2021. Hess Midstream LP retained control in the Partnership based on the delegation of control provisions, as described above in Note 2, Basis of Presentation. As a result of the transaction, we recognized an adjustment to the carrying amount of noncontrolling interest and Class A shareholders’ capital balance of $31.8 million to reflect the change in ownership interest. In addition, we recognized an additional deferred tax asset of $26.4 million for the temporary differences related to the change between carrying amount and tax basis of our investment in the Partnership. The effect of recognizing the additional deferred tax asset was included in Class A shareholders’ equity balance in the accompanying consolidated statement of changes in partners’ capital due to the transaction being characterized as a transaction among or with shareholders.