XML 63 R51.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2

Description of business and summary of significant accounting policies, Warranty Reserves (Details) - Maximum [Member]	3 Months Ended
	Mar. 31, 2024
Warranty Reserves [Abstract]
Limited warranty period against building defects	1 year
Limited warranty period against structural claims	10 years

X

- Definition

Period of limited warranty for major defects in buildings, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	sdhc_LimitedWarrantyPeriodAgainstBuildingDefects
Namespace Prefix:	sdhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period of limited warranty for major defects in structural elements, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	sdhc_LimitedWarrantyPeriodAgainstStructuralClaims
Namespace Prefix:	sdhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: