v3.25.1

Preferred Units - Schedule of Preferred Units Outstanding (Details)	Mar. 31, 2025 shares
Preferred Units Outstanding [Roll Forward]
Beginning balance (in shares)	180,000
Ending balance (in shares)	180,000

X

- Definition

The number of preferred units outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

+ Details

Name:	us-gaap_PreferredUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Preferred Units Outstanding

+ References

No definition available.

+ Details

Name:	usac_PreferredUnitsOutstandingRollForward
Namespace Prefix:	usac_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration