Summary of Significant Accounting Policies - Property and Equipment (Details) - BW Ultimate Parent, LLC and Subsidiaries |
Mar. 31, 2026 |
|---|---|
| Buildings and improvements | Minimum | |
| Accounting Policies [Line Items] | |
| Useful lives for assets | 10 years |
| Buildings and improvements | Maximum | |
| Accounting Policies [Line Items] | |
| Useful lives for assets | 39 years |
| Equipment | |
| Accounting Policies [Line Items] | |
| Useful lives for assets | 5 years |
| Tanks | |
| Accounting Policies [Line Items] | |
| Useful lives for assets | 40 years |
| Leasehold improvements | |
| Accounting Policies [Line Items] | |
| Leasehold improvements, Useful Life, Term, Description [Extensible Enumeration] | us-gaap:UsefulLifeShorterOfTermOfLeaseOrAssetUtilityMember |