Leases - Components of Lease Expense (Q2) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Leases [Abstract] | |||||||
| Operating lease cost | $ 180,450 | $ 65,781 | $ 335,502 | $ 100,757 | $ 288,628 | $ 41,515 | $ 236 |
| Variable lease cost | 57,851 | 10,524 | 101,780 | 13,438 | 54,633 | 16,028 | 370 |
| Total lease cost | $ 238,301 | $ 76,305 | $ 437,282 | $ 114,195 | $ 370,535 | $ 61,461 | $ 3,413 |