XML 44 R31.htm IDEA: XBRL DOCUMENT v3.25.2

Organization and Nature of Business (Detail) T in Millions	Jun. 30, 2025 T	Mar. 31, 2022 T	Sep. 30, 2020 mine T
Business Acquisition [Line Items]
Number of mines and related facilities acquired | mine			2
Oakdale, Wisconsin
Business Acquisition [Line Items]
Processing capacity	5.5
Blair, Wisconsin
Business Acquisition [Line Items]
Processing capacity		2.9
BNSF | Ottawa, Illinois
Business Acquisition [Line Items]
Processing capacity			1.6

X

- Definition

Current annual processing capacity.

+ References

No definition available.

+ Details

Name:	snd_CurrentAnnualProcessingCapacity
Namespace Prefix:	snd_
Data Type:	dtr-types1:massItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number Of Mines And Related Facilities Acquired

+ References

No definition available.

+ Details

Name:	snd_NumberOfMinesAndRelatedFacilitiesAcquired
Namespace Prefix:	snd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

+ Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_StatementGeographicalAxis=snd_OakdaleWisconsinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=snd_BlairWisconsinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis=snd_BNSFMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=snd_OttawaIllinoisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: