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: |