STOCKHOLDERS' EQUITY AND MEZZANINE EQUITY - Schedule of Common Units and Preferred Units Outstanding by Unit Class and Carrying Value (Details) - USD ($)	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Preferred Units [Line Items]
Total Units, Authorized			771,102,182
Total Units, Issued			327,070,002
Total Units, Outstanding			327,070,002
Total Units, Amount	$ 0	$ 2,431,909,000	$ 2,066,555,000	$ 1,352,291,000	$ 1,351,918,000	$ 1,300,376,000
Total Units, Liquidation Preference			2,119,723,000
Class A common stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 0
Class A common stock \| Common Capital Units
Preferred Units [Line Items]
Total Units, Authorized			367,055,779
Total Units, Issued			3,128,026
Total Units, Outstanding			3,128,026
Total Units, Amount			$ 1,800,000
Class B common stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 0
Class B common stock \| Common Capital Units
Preferred Units [Line Items]
Total Units, Authorized			41,149,242
Total Units, Issued			16,838,205
Total Units, Outstanding			16,838,205
Total Units, Amount			$ 93,353,000
Series A Preferred Stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 52,146,000
Series A Preferred Stock \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			90,625,588
Total Units, Issued			90,625,588
Total Units, Outstanding			90,625,588
Total Units, Amount			$ 218,408,000
Series A-1 Preferred Units
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 67,250,000
Series A-1 Preferred Units \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			8,808,351
Total Units, Issued			8,808,351
Total Units, Outstanding			8,808,351
Total Units, Amount			$ 21,477,000
Series B Preferred Stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 120,214,000
Series B Preferred Stock \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			11,643,171
Total Units, Issued			11,643,171
Total Units, Outstanding			11,643,171
Total Units, Amount			$ 101,382,000
Series C Preferred Stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 305,114,000
Series C Preferred Stock \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			41,418,916
Total Units, Issued			39,963,592
Total Units, Outstanding			39,963,592
Total Units, Amount			$ 265,797,000
Series C-1 Preferred Units
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 874,999,000
Series C-1 Preferred Units \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			162,246,180
Total Units, Issued			107,908,114
Total Units, Outstanding			107,908,114
Total Units, Amount			$ 686,715,000
Series D Preferred Stock
Preferred Units [Line Items]
Total Units, Liquidation Preference			$ 700,000,000
Series D Preferred Stock \| Preferred Capital Units
Preferred Units [Line Items]
Total Units, Authorized			48,154,955
Total Units, Issued			48,154,955
Total Units, Outstanding			48,154,955
Total Units, Amount			$ 677,623,000