Non-controlling interests - Schedule of Redemptions (Detail) - BT Hold Co [Member] - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024
Redemption and acquisition of interests [Abstract]
Number of BT HoldCo interests redeemed by the non-controlling interest holders	2,906,976	2,906,976
Number of BT HoldCo interests received by PubCo	2,906,976	2,906,976
Cancellation of Common Units [Abstract]
Common Units surrendered	2,906,976	2,906,976
Class V Common Stock [Member]
Cancellation of Common Units [Abstract]
Common Units surrendered	2,906,976	2,906,976
Class A Common Stock [Member]
Issuance of Class A common stock [Abstract]
Shares of Class A common stock issued in connection with the redemption of BT HoldCo interests	2,906,976	2,906,976