v3.26.3
NON-CONTROLLING INTERESTS - Narrative (Details)
3 Months Ended
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Noncontrolling Interest [Abstract]
Weighted average ownership percentage by parent (as a percent)
0
0
0
0
X
- Definition
Noncontrolling Interest, Weighted Average Ownership Percentage By Parent
+ References
No definition available.
+ Details
Name:
up_NoncontrollingInterestWeightedAverageOwnershipPercentageByParent
Namespace Prefix:
up_
Data Type:
xbrli:pureItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_NoncontrollingInterestAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration