XBRL 2.1

https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/
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XBRL 2.1 is an XML-based language specification for financial reporting that enables the...
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### Skeletal XBRL linkbase Example (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An example of a basic XBRL linkbase element, demonstrating the inclusion of namespace definitions, the @schemaLocation attribute, and a calculationLink as an extended link.

```xml
<linkbase 
xmlns:samp="http://www.xbrl.org/sample" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xbrli="http://www.xbrl.org/2003/instance" 
xmlns="http://www.xbrl.org/2003/linkbase" 
xmlns:xlink="http://www.w3.org/1999/xlink" 
xmlns:xl="http://www.xbrl.org/2003/XLink" xsi:schemaLocation="http://www.xbrl.org/sample samp001.xsd" xml:base="http://www.xbrl.org/sample"><calculationLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended"><!-- ... --></calculationLink></linkbase>
```

--------------------------------

### XBRL Instance Example with footnoteLink

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates a practical use case of the footnoteLink element in an XBRL instance. This example shows how to link financial facts to footnotes, including multilingual footnotes, using locators and arcs. It also defines contexts and units.

```XML
<xbrl 
xmlns:link="http://www.xbrl.org/2003/linkbase" 
xmlns:ci="http://www.xbrl.org/us/gaap/ci/2003/usfr-ci-2003" 
xmlns:fr="http://www.xbrl-fr.org/xbrl/2003-02-29" 
xmlns:ISO4217="http://www.xbrl.org2003/2003/iso4217" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:s="http://mycompany.com/xbrl/taxonomy" 
xmlns:xbrli="http://www.xbrl.org/2003/instance" 
xmlns:xlink="http://www.w3.org/1999/xlink" 
xmlns:xl="http://www.xbrl.org/2003/XLink" 
xmlns="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl-fr.org/xbrl/2003-02-29 fr.xsd">
<link:schemaRef xlink:type="simple" xlink:href="fr.xsd"/>
<fr:propertyPlantEquipmentGross precision="4" unitRef="u1" contextRef="c1">1200</fr:propertyPlantEquipmentGross>
<fr:assetsTotal id="f1" precision="4" unitRef="u1" contextRef="c1">2600</fr:assetsTotal>
<fr:equityTotal id="f3" precision="4" unitRef="u1" contextRef="c1">1100</fr:equityTotal>
<fr:liabilitiesTotal id="f2" precision="4" unitRef="u1" contextRef="c1">2600</fr:liabilitiesTotal>
<link:footnoteLink xlink:type="extended" xlink:title="1" xlink:role="http://www.xbrl.org/2003/role/link">
<link:footnote xlink:type="resource" xlink:label="footnote1" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en">Including the effects of the merger.</link:footnote>
<link:footnote xlink:type="resource" xlink:label="footnote1" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="fr">Y compris les effets de la fusion.</link:footnote>
<link:loc xlink:type="locator" xlink:label="fact1" xlink:href="#f1"/>
<link:loc xlink:type="locator" xlink:label="fact1" xlink:href="#f2"/>
<link:loc xlink:type="locator" xlink:label="fact1" xlink:href="#f3"/>
<link:footnoteArc xlink:type="arc" xlink:from="fact1" xlink:to="footnote1" xlink:title="view explanatory footnote" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"/>
</link:footnoteLink>
<context id="c1">
<entity>
<identifier scheme="http://www.un.org/">Example plc</identifier>
</entity>
<period>
<instant>2001-08-16</instant>
</period>
<scenario name="Actual values">
<fr:scenarioType>actual</fr:scenarioType>
</scenario>
</context>
<unit id="u1">
<measure>ISO4217:EUR</measure>
</unit>
</xbrl>
```

--------------------------------

### XBRL Instance with <scenario> Element Example

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An example of an XBRL instance document demonstrating the use of the <scenario> element to include specific business reporting details like 'bestEstimate', 'residence', 'nonSmoker' status, and age ranges.

```xml
<xbrl 
xmlns:fid="http://www.someInsuranceCo.com/scenarios" 
xmlns:other="http://www.example.com" 
xmlns:ci="http://www.xbrl.org/us/gaap/ci/2003/usfr-ci-2003" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:s="http://mycompany.com/xbrl/taxonomy" 
xmlns:xbrli="http://www.xbrl.org/2003/instance" 
xmlns:xlink="http://www.w3.org/1999/xlink" 
xmlns:xl="http://www.xbrl.org/2003/XLink" 
xmlns="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.someInsuranceCo.com/scenarios http://www.someInsuranceCo.com/scenarios/scenarios-schema.xsd"><!-- ... at least one link:schemaRef element goes here ... --><!-- ... elements from taxonomies containing fact values go here ... --><context id="c1"><entity><identifier scheme="http://www.example.com">someInsuranceCo</identifier></entity><scenario><other:bestEstimate/><fid:dwSlice><fid:residence>MA</fid:residence><fid:nonSmoker>true</fid:nonSmoker><fid:minAge>34</fid:minAge><fid:maxAge>49</fid:maxAge></fid:dwSlice></scenario></context></xbrl>
```

--------------------------------

### XBRL: Fixing missing namespace reference in example 8

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This errata addresses a missing namespace reference in Example 8 of the XBRL specification. Correcting this ensures that the example accurately reflects proper namespace usage.

```xml
<example 8>
```

--------------------------------

### XBRL Instance XML Example with URI

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates how a URI scheme should be formatted in an XBRL instance, specifically adding 'http://' to the beginning of scheme URIs.

```xml
http://...
```

--------------------------------

### XHTML Label Example in XBRL Specification (XHTML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Inserts an example of an XHTML label, as provided by Don Bruey, into the XBRL specification. This demonstrates the proper usage of labels within the XBRL framework.

```html
<html>
  <body>
    <p>Example Label: <span class="xbrl-label">Net Income</span></p>
  </body>
</html>

```

--------------------------------

### XPointer Usage in URI Fragment Identifiers (Examples)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

These examples illustrate various ways to use XPointer syntax within URI fragment identifiers to target specific XML elements. They cover referencing elements by ID and by document order within a specified XML document.

```text
`#f1` |  The fragment of the current document with an ` @id` attribute equal to "f1"   
```

```text
`us_bs_v21.xsd#currentAssets` |  The element of the document us_bs_v21.xsd with an ` @id` attribute equal to "currentAssets"   
```

```text
`us_bs_v21.xsd#element(/1/14)` |  The element of the document us_bs_v21.xsd that is the 14 child (in document order) of the root element.   
```

```text
`us_bs_v21.xsd#element(currentAssets)` |  The element of the document us_bs_v21.xsd with an ` @id` attribute equal to "currentAssets"   
```

--------------------------------

### XBRL Label Link Example (Many-to-Many Relationships)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates an XBRL label link where a single arc relates multiple concepts to multiple labels. This setup utilizes shared @xlink:label attributes on locators and resources to represent these many-to-many connections.

```xml
<labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:label="ab" xlink:href="example.xsd#conceptA"/>
<loc xlink:type="locator" xlink:label="ab" xlink:href="example.xsd#conceptB"/>
<label xlink:type="resource" xml:lang="en" xlink:label="lab_ab" xlink:role="http://www.xbrl.org/2003/role/label">Concept A or B</label>
<label xlink:type="resource" xml:lang="en" xlink:label="lab_ab" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total of Concept A or B</label>
<labelArc xlink:type="arc" xlink:from="ab" xlink:to="lab_ab" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"/>
</labelLink>
```

--------------------------------

### XBRL <label> element examples

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates the usage of the XBRL <label> element for providing concept labels. The examples show a simple text label and a label incorporating XHTML for formatting, both with xlink attributes and the mandatory xml:lang attribute.

```xml
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ci_currentAssets_en" xml:lang="en">Current Assets</label>
```

```xml
<label xmlns:xhtml="http://www.w3.org/1999/xhtml" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ci_netIncome_en" xml:lang="en"><xhtml:b>Net Income</xhtml:b> (Loss)</label>
```

--------------------------------

### XBRL Taxonomy Schema: Instant and Duration Concept Examples (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Provides specific examples of XML Schema element definitions for XBRL concepts, demonstrating the use of @periodType to distinguish between 'instant' and 'duration' measurements. Also shows the optional @balance attribute.

```XML
<element id="a1" name="changeInRetainedEarnings" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="a2" name="fixedAssets" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
```

--------------------------------

### Example XBRL Instance with <xbrl> as Root Element

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates the usage of the <xbrl> element as the root in an XBRL instance, including namespace declarations, schema references, financial facts, context, and unit definitions.

```xml
<xbrl 
xmlns:link="http://www.xbrl.org/2003/linkbase" 
xmlns:ci="http://www.xbrl.org/us/gaap/ci/2003/usfr-ci-2003" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:s="http://mycompany.com/xbrl/taxonomy" 
xmlns:xbrli="http://www.xbrl.org/2003/instance" 
xmlns:xlink="http://www.w3.org/1999/xlink" 
xmlns:xl="http://www.xbrl.org/2003/XLink" 
xmlns="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/us/fr/ci/2003/usfr-ci-2003 http://www.xbrl.org/us/fr/ci/2000-07-31/usfr-ci-2003.xsd"><link:schemaRef xlink:type="simple" xlink:href="http://www.xbrl.org/us/fr/ci/2000-07-31/usfr-ci-2003.xsd"/><ci:assets precision="3" unitRef="u1" contextRef="c1">727</ci:assets><ci:liabilities precision="3" unitRef="u1" contextRef="c1">635</ci:liabilities><context id="c1"><!-- ... --></context><unit id="u1"><!-- ... --></unit></xbrl>
```

--------------------------------

### XBRL Period Attribute Examples (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet provides examples of the 'period' attribute, including discussions on specific dates and durations, and their interaction with prior period balances and taxonomies.

```xml
<context id="c2">
  <entity>
    <identifier scheme="http://www.example.com/scheme">ExampleEntity1</identifier>
  </entity>
  <period>
    <startDate>2022-01-01</startDate>
    <endDate>2022-12-31</endDate>
  </period>
</context>
<context id="c3">
  <entity>
    <identifier scheme="http://www.example.com/scheme">ExampleEntity2</identifier>
  </entity>
  <period>
    <instant>2023-06-30</instant>
  </period>
</context>
```

--------------------------------

### Correcting Example with `requires-element` in XBRL

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet shows a correction made to an example in the XBRL specification, replacing `requires-target` with `requires-element`. This change ensures the example accurately reflects the specification's requirements for element handling.

```xml
<example>
  <requires-element/>
</example>
```

--------------------------------

### XBRL: Removing duplicate contexts and correcting example instance

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This errata addresses the removal of references to duplicate contexts and corrects a typographical error within the example instance, specifically in the identifier section of the XBRL specification.

```xml
<example instance>
<identifier section>
```

--------------------------------

### XBRL Instance Example - Duplicate Items and Tuples

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An illustrative XBRL instance demonstrating duplicate items and tuples. It includes nested tuples and elements with potentially identical or equivalent content, showcasing the application of the duplicate and equality predicates.

```XML
<xbrl xmlns="http://www.xbrl.org/2003/instance"
      xmlns:s="http://mycompany.com/xbrl/taxonomy"
      xmlns:xbrli="http://www.xbrl.org/2003/instance"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <s:analysis>
    <!-- Complex structure with nested tuples and items -->
  </s:analysis>
</xbrl>
```

--------------------------------

### XBRL Instance Example with @balance

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates the use of the @balance attribute on XBRL elements 'netIncome' and 'fixedAssets'. It shows how 'credit' is assigned to 'netIncome' and 'debit' to 'fixedAssets' for defining their normal balances.

```xml
<element id="netIncome" name="netIncome" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="fixedAssets" name="fixedAssets" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
```

--------------------------------

### XBRL Numeric Item Example with Calculation Context

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates the XML structure of numeric items used in calculations, including context and unit references, precision, and decimals. This is used to illustrate summation in XBRL.

```xml
<a contextRef="c1" unitRef="u1" precision="2">1559</a><b contextRef="c1" unitRef="u1" precision="3">984.8</b><c contextRef="c1" unitRef="u1" decimals="1">582.334973</c>
```

```xml
<a contextRef="c1" unitRef="u1" precision="2">1527</a><b contextRef="c1" unitRef="u1" precision="3">984.8</b><c contextRef="c1" unitRef="u1" decimals="1">582.334973</c>
```

--------------------------------

### XBRL Reference Resource Example with 'ci' namespace

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet shows a basic XBRL 'reference' resource element using a 'ci' namespace prefix. It contains 'ci:name' and 'ci:page' elements, which are likely defined as substitutions for the abstract 'link:part' element in a specific taxonomy.

```xml
<reference xlink:type="resource" xlink:label="ci_propertyPlantAndEquipmentNet_APB">
<ci:name>ABP</ci:name>
<ci:page>42</ci:page>
</reference>
```

--------------------------------

### Example Presentation Arc

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates the usage of a presentationArc element to establish a parent-child relationship between 'ci_currentAssets' and 'ci_prepaidExpenses'. It specifies the arc type, target concepts, arcrole, and order.

```xml
<presentationArc xlink:type="arc" xlink:from="ci_currentAssets" xlink:to="ci_prepaidExpenses" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" order="4"/>
```

--------------------------------

### XBRL Label Resource with @xlink:role

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates an XBRL <label> resource using the @xlink:role attribute to specify the type of label provided for a concept. This example shows a standard label.

```xml
<label xlink:type="resource" xlink:label="A" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en">Current Assets</label>
```

--------------------------------

### XBRL Linkbase Example: Concept to Reference Arc

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This example demonstrates an XBRL linkbase structure that links a concept ('s_customerName') to two different reference resources using 'referenceArc' and 'reference' elements. It shows how to use xlink:role to differentiate reference types (definitionRef and measurementRef) and includes 'ref:name' and 'ref:pages' as parts of the reference.

```xml
<linkbase 
xmlns:link="http://www.xbrl.org/2003/linkbase" 
xmlns:ref="http://www.xbrl.org/2003/ref" 
xmlns="http://www.xbrl.org/2003/linkbase"><referenceLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link"><!-- locator for element --><loc xlink:type="locator" xlink:href="samp001.xsd#s_customerName" xlink:label="s_customerName"/><!-- arcs --><referenceArc xlink:type="arc" xlink:from="s_customerName" xlink:to="s_customerName_REF" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference"/><!-- references all with the same xlink:label --><reference xlink:type="resource" xlink:label="s_customerName_REF" xlink:role="http://www.xbrl.org/2003/role/definitionRef"><ref:name>Handbook of Business Reporting</ref:name><ref:pages>5</ref:pages></reference><reference xlink:type="resource" xlink:label="s_customerName_REF" xlink:role="http://www.xbrl.org/2003/role/measurementRef"><ref:name>Handbook of Business Reporting</ref:name><ref:pages>45-50</ref:pages></reference></referenceLink>
```

--------------------------------

### XBRL Instance Schema Reference

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates how an XBRL instance references a hospital taxonomy using the `<schemaRef>` element. This is a key starting point for discovering the DTS that supports the XBRL instance.

```xml
<schemaRef>
  ... hospital taxonomy ...
</schemaRef>
```

--------------------------------

### XBRL Taxonomy Schema Example with Linkbase References

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This XML snippet demonstrates a skeletal XBRL taxonomy schema. It includes namespace declarations for XBRL linkbases and a target namespace, along with annotation elements that reference various linkbase files (presentation, calculation, definition, label, reference). It also imports the XBRL instance schema.

```xml
<schema 
xmlns:link="http://www.xbrl.org/2003/linkbase" 
xmlns:ci="http://www.mycompany.com/taxonomy/2003-10-19"
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.mycompany.com/taxonomy/2003-10-19">
<annotation>
<appinfo>
<link:linkbaseRef xlink:type="simple" xlink:href="linkbase_presentation.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="linkbase_calculation.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="linkbase_definition.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="linkbase_label.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="linkbase_reference.xml" xlink:role="http://www.xbrl.org/2003/role/referenceLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
</appinfo>
</annotation>
<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
<!-- ... taxonomy elements declaration starts here ... -->
</schema>
```

--------------------------------

### XBRL Label Link Example (One-to-Many Relationships)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates an XBRL label link with a single arc establishing multiple relationships between a concept and its labels. This is achieved by having shared @xlink:label attributes for locators and resources.

```xml
<labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:label="a" xlink:href="example.xsd#conceptA"/>
<label xlink:type="resource" xml:lang="en" xlink:label="lab_a_standard" xlink:role="http://www.xbrl.org/2003/role/label">Concept A</label>
<label xlink:type="resource" xml:lang="en" xlink:label="lab_a_total" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total of Concept A</label>
<labelArc xlink:type="arc" xlink:from="a" xlink:to="lab_a_standard" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"/>
<labelArc xlink:type="arc" xlink:from="a" xlink:to="lab_a_total" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"/>
</labelLink>
```

--------------------------------

### XBRL Namespace Prefixes (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet shows the practice of adding namespace prefixes to XBRL examples for clarity and consistency, ensuring proper XML validation.

```xml
<xbrl xmlns="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <context id="c1">
    <entity>
      <identifier scheme="http://www.xbrl.org/entity/iso4217">USD</identifier>
    </entity>
    <period>
      <instant>2023-01-01</instant>
    </period>
  </context>
  <unit id="u1">
    <measure>pure:radian</measure>
  </unit>
</xbrl>
```

--------------------------------

### XBRL Definition Relationships Example (General-Special)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates definition relationships in an XBRL linkbase, specifically the 'general-special' arcrole. This shows how a broader concept (Performance Measures) relates to more specific concepts (Net Income, etc.).

```text
Concept: `performanceMeasures`
Relationship: `http://www.xbrl.org/2003/arcrole/general-special`
Related Concepts: `netIncome`, `netIncomeBeforeTax`, `netIncomeAfterTax`
```

--------------------------------

### XBRL Definition Link Example (Valid Alternative Construction)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Presents a valid XBRL definition link structure as an alternative to using duplicate arcs. Each relationship is represented by a separate arc within its own extended link, adhering to XLINK rules.

```xml
<definitionLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:label="a" xlink:href="example.xsd#conceptA"/>
<loc xlink:type="locator" xlink:label="b" xlink:href="example.xsd#conceptB"/>
<definitionArc xlink:type="arc" xlink:from="a" xlink:to="b" xlink:arcrole="http://www.xbrl.org/2003/arcrole/general-special"/>
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:label="a" xlink:href="example.xsd#conceptA"/>
<loc xlink:type="locator" xlink:label="b" xlink:href="example.xsd#conceptB"/>
<definitionArc xlink:type="arc" xlink:from="a" xlink:to="b" xlink:arcrole="http://www.xbrl.org/2003/arcrole/requires-element"/>
</definitionLink>
```

--------------------------------

### XBRL `unitRef` and `contextRef` Attribute Usage

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This section explains the usage of the ` @unitRef` and ` @contextRef` attributes in XBRL. It provides examples and context for how these attributes are applied to dimensions and units.

```xml
<element contextRef="ctx1" unitRef="usd" />
```

--------------------------------

### XBRL Instance with <segment> Element

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An example of an XBRL instance document using the <segment> element to specify a business segment. It includes custom elements like 'stateProvince' from a company-specific namespace within the <segment> tag, demonstrating how to provide more detailed business context.

```xml
<xbrl xmlns:ci="http://www.xbrl.org/us/gaap/ci/2003/usfr-ci-2003" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:s="http://mycompany.com/xbrl/taxonomy" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:my="http://www.someCompany.com/segment" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.someCompany.com/segment http://www.someCompany.com/segment/segment-schema.xsd"><!-- ... at least one link:schemaRef element goes here ... --><!-- ... elements from taxonomies containing fact values go here ... --><context id="c1"><entity><!--required content --><identifier scheme="http://www.dnb.com">121064880</identifier><!-- optional content --><segment><my:stateProvince>MI</my:stateProvince></segment></entity><period><instant>2002-12-01</instant></period></context></xbrl>
```

--------------------------------

### XBRL fractionItemType Definition and Example (XML Schema)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Defines the XBRL 'fractionItemType' complex type for representing exact fractional values, including numerator and denominator elements. It also shows an example of its usage in an XBRL instance for representing a fractional value.

```xml
<schema   
xmlns:link="http://www.xbrl.org/2003/linkbase"   
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.xbrl.org/2003/instance" elementFormDefault="qualified">
<element name="numerator" type="decimal"/>
<element name="denominator" type="xbrli:nonZeroDecimal"/>
<complexType name="fractionItemType" final="extension">
<sequence>
<element ref="xbrli:numerator"/>
<element ref="xbrli:denominator"/>
</sequence>
<attributeGroup ref="xbrli:essentialNumericItemAttrs"/>
</complexType>
</schema>

---

Fractional value | Representation  
---|---
1/3 |  <myTaxonomy:oneThird id="oneThird" unitRef="u1" contextRef="numC1"><numerator>1</numerator><denominator>3</denominator></myTaxonomy:oneThird>
```

--------------------------------

### Correcting schemaRef namespace in XBRL Specification examples (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Fixes an error in Example 4 of the XBRL specification where the `<schemaRef>` element was incorrectly placed in the xbrl-instance namespace instead of the xbrl-linkbase namespace. Also corrects an error in the XML Schema for `<schemaRef>` elements regarding the namespace prefix for simpleType.

```xml
<schemaRef ref="http://www.xbrl.org/2003/instance"/>

```

--------------------------------

### XBRL Instance Fragment with Nested Tuples and Calculations

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An example XBRL instance showing nested customer data and associated calculation arcs. It highlights how items within the same context and units participate in calculations based on their hierarchical relationships (sibling, uncle).

```xml
<analysis>
  <customer>
    <name contextRef="c1">Acme</name>
    <gross precision="4" unitRef="u1" contextRef="c1">3000</gross>
    <returns precision="3" unitRef="u1" contextRef="c1">100</returns>
    <net precision="4" unitRef="u1" contextRef="c1">2900</net>
  </customer>
  <customer>
    <name contextRef="c1">Bree</name>
    <gross precision="4" unitRef="u1" contextRef="c1">2000</gross>
    <returns precision="3" unitRef="u1" contextRef="c1">200</returns>
    <net precision="4" unitRef="u1" contextRef="c1">1800</net>
  </customer>
  <totalGross precision="4" unitRef="u1" contextRef="c1">5000</totalGross>
</analysis>
```

--------------------------------

### XBRL <identifier> Element Examples

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates the usage of the <identifier> element with various schemes for identifying business entities, such as company ticker symbols, D-U-N-S numbers, and CUSIP numbers.

```xml
<identifier scheme="http://www.nasdaq.com">SAMP</identifier>
<identifier scheme="http://www.dnb.com">121064880</identifier>
<identifier scheme="http://www.cusip.org">41009876AB</identifier>
<identifier scheme="http://www.ietf.org/URI">www.w3c.org</identifier>
```

--------------------------------

### XBRL Unit Examples: Currency, Pure Number, Compound Units

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates the definition of basic XBRL units including currency (ISO4217:GBP), a pure number (xbrli:pure), and compound units like square feet (myuom:feet multiplied by myuom:feet). It highlights correct usage and potential issues like incorrect casing for currency designators.

```xml
<unit id="u1"><measure xmlns:ISO4217="http://www.xbrl.org/2003/iso4217">ISO4217:GBP</measure></unit>

```

```xml
<unit id="u2"><measure xmlns:ISO4217="http://www.xbrl.org/2003/iso4217">ISO4217:gbp</measure></unit>

```

```xml
<unit id="u1"><measure>xbrli:pure</measure></unit>

```

```xml
<unit id="u3"><measure>myuom:feet</measure><measure>myuom:feet</measure></unit>

```

```xml
<unit id="u4"><measure>xbrli:shares</measure></unit>

```

```xml
<unit id="u5"><measure>myuom:FTE</measure></unit>

```

--------------------------------

### XBRL Calculation Relationships Example

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates mathematical relationships between XBRL concepts used in financial reporting, expressed as formulas. These define how elements contribute to summations and calculations within a taxonomy.

```text
1. `netIncomeAfterTax` = `netIncomeBeforeTax` - `taxes`
2. `netIncome` = `netIncomeAfterTax` - `extraordinaryItems`
```

--------------------------------

### XBRL Tuple Structure for Property Information

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates the use of tuples in XBRL to group related concepts that are often repeated or cannot be understood independently. This example shows a 'property' tuple containing elements like 'description', 'dateAcquired', 'dateDisposedOf', and 'fairMarketValue', demonstrating how tuples structure complex data relationships.

```xml
<property>
  <description>Property description</description>
  <dateAcquired>Date property acquired</dateAcquired>
  <dateDisposedOf>Date property disposed of</dateDisposedOf>
  <fairMarketValue>Property fair market value</fairMarketValue>
</property>
```

--------------------------------

### Define Management Information Tuple (XML Schema)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

An example of defining a 'managementInformation' tuple in a taxonomy schema. This tuple groups 'managementName', 'managementTitle', and optionally 'managementAge', and includes an optional 'id' attribute.

```xml
<schema 
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://mycompany.com/xbrl/taxonomy"><element name="managementName" type="xbrli:tokenItemType" xbrli:periodType="instant" substitutionGroup="xbrli:item"/><element name="managementTitle" type="xbrli:tokenItemType" xbrli:periodType="instant" substitutionGroup="xbrli:item"/><element name="managementAge" type="xbrli:nonNegativeIntegerItemType" xbrli:periodType="instant" substitutionGroup="xbrli:item"/><element name="managementInformation" substitutionGroup="xbrli:tuple"><complexType><complexContent><restriction base="anyType"><sequence><element ref="s:managementName"/><element ref="s:managementTitle"/><element ref="s:managementAge" minOccurs="0"/></sequence><attribute name="id" type="ID" use="optional"/></restriction></complexContent></complexType></element></schema>
```

--------------------------------

### XBRL Calculation Arc Syntax Example

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Shows the basic syntax of a `calculationArc` element in XBRL, which defines a summation relationship between two items. It includes `xlink:type`, `xlink:arcrole`, `xlink:from`, `xlink:to`, `weight`, and `order` attributes.

```xml
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="currentAssets" xlink:to="prepaidExpenses" weight="1.0" order="1"/>
```

--------------------------------

### XBRL: Correcting typographical errors in Examples 35 and 36

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This errata corrects typographical errors found in Examples 35 and 36 of the XBRL specification. Ensuring accuracy in examples is crucial for user comprehension and correct implementation.

```xml
<Example 35>
<Example 36>
```

--------------------------------

### XBRL Concept Consistency Example: essence-alias

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Illustrates an inconsistency scenario in an XBRL Instance where 'essence-alias' arc semantics are violated. This example involves two string concepts, E (Essence) and D (Alias), with differing values in the same context.

```xml
<context id="c1">
  ...
</context>
<item>
  <concept>E</concept>
  <value>Bert</value>
</item>
<item>
  <concept>D</concept>
  <value>Ernie</value>
</item>
```

--------------------------------

### XBRL: Correcting misleading reasoning in Example 49

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This errata corrects Example 49 within the XBRL specification, identifying it as erroneous due to misleading reasoning regarding the presence of various attributes. This correction aims to improve clarity and accuracy.

```xml
<example 49>
```

--------------------------------

### XBRL Instance Document Structure with Elements

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates the basic structure of an XBRL instance document, including the root element, namespace declarations, and common elements like schemaRef, managementInformation, managementName, managementTitle, and managementAge. It highlights the use of contextRef and unitRef attributes for linking data to its context and unit of measure.

```xml
<xbrl xmlns="http://www.xbrl.org/2003/instance"><!-- ... one link:schemaRef element MUST exist here referencing previous taxonomy ... --><s:managementInformation><s:managementName contextRef="c1">Haywood Chenokitov</s:managementName><s:managementTitle contextRef="c1">President</s:managementTitle><s:managementAge precision="2" contextRef="n1" unitRef="u1">42</s:managementAge></s:managementInformation><s:managementInformation><s:managementName contextRef="c1">Miriam Minderbender</s:managementName><s:managementTitle contextRef="c1">CEO</s:managementTitle></s:managementInformation><!-- ... Context c1 MUST be defined here... --><!-- ... Unit u1 MUST be defined here... --></xbrl>
```

--------------------------------

### XBRL SchemaLocation Attribute Correction (XML)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet shows the correction of 'schemaLocation' attribute examples and their explanations within the XBRL specification.

```xml
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" targetNamespace="http://www.example.com/taxonomy" elementFormDefault="qualified" attributeFormDefault="unqualified" xsi:schemaLocation="http://www.xbrl.org/2003/instance http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd">
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:element name="myFact" type="xsd:decimal"/>
</xsd:schema>
```

--------------------------------

### XBRL Instance Linkbase Reference

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

The `<linkbaseRef>` element points to XBRL linkbase files, which contain dimensional, calculation, definition, and label relationships. These references are vital for a complete understanding of the XBRL data.

```xml
<linkbaseRef xlink:href="http://www.example.com/calculation.xml" xlink:type="simple"/>
```

--------------------------------

### XBRL Element Tagging and Attributes

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Demonstrates the correct usage and context of various XBRL elements and their associated attributes, such as documentation, unit, identifier, and calculationArc. It highlights specific attribute requirements and content model definitions.

```xml
<documentation>
  ...
</documentation>
```

```xml
<unit>
  ...
</unit>
```

```xml
<identifier>
  ...
</identifier>
```

```xml
<calculationArc @weight="value">
  ...
</calculationArc>
```

```xml
<unitNumerator>
  ...
</unitNumerator>
```

```xml
<unitDenominator>
  ...
</unitDenominator>
```

```xml
<divide>
  ...
</divide>
```

```xml
<measure>
  ...
</measure>
```

```xml
<documentation @xml:base="uri">
  ...
</documentation>
```

```xml
<link @xlink:type="type">
  ...
</link>
```

--------------------------------

### XML Schema for XBRL Linkbase SimpleType

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Defines the 'simpleType' used for simple links in XBRL, including attributes for href, arcrole, role, title, show, and actuate. It imports the XLink namespace.

```XML
<schema 
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.xbrl.org/2003/XLink" elementFormDefault="qualified" attributeFormDefault="unqualified">
<complexType name="simpleType">
<annotation>
<documentation>
Type for the simple links defined in XBRL 
</documentation>
</annotation>
<complexContent>
<restriction base="anyType">
<attributeGroup ref="xlink:simpleType"/>
<attribute ref="xlink:href" use="required"/>
<attribute ref=" xlink:arcrole" use="optional"/>
<attribute ref=" xlink:role" use="optional"/>
<attribute ref=" xlink:title" use="optional"/>
<attribute ref=" xlink:show" use="optional"/>
<attribute ref=" xlink:actuate" use="optional"/>
<anyAttribute namespace="http://www.w3.org/XML/1998/namespace" processContents="lax"/>
</restriction>
</complexContent>
</complexType>
</schema>
```

--------------------------------

### Define Custom Role Type using <roleType> (XML Schema)

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Example of defining a custom role type named 'endnote' with a specific roleURI and usedOn element in an XBRL taxonomy schema.

```XML
<schema 
xmlns:link="http://www.xbrl.org/2003/linkbase" 
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.mycomp.com/mytaxonomy" elementFormDefault="qualified"><annotation><appinfo><link:roleType roleURI="http://www.mycompany.com/role/endnote" id="endnote"><link:definition> A footnote that should be displayed only at the end of a document </link:definition><link:usedOn>link:footnote</link:usedOn></link:roleType></appinfo></annotation></schema>
```

--------------------------------

### XBRL Instance Schema - Basic Structure and Imports

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

Defines the basic structure of the XBRL instance schema, including XML namespace declarations and imports for linkbase schemas. It sets the target namespace and default element form.

```XML
<schema xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.xbrl.org/2003/instance" elementFormDefault="qualified">
<annotation>
<documentation>
Taxonomy schema for XBRL. This schema defines syntax relating to XBRL instances. 
</documentation>
</annotation>
<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="xbrl-linkbase-2003-12-31.xsd"/>
```

--------------------------------

### Discovering Taxonomy Schemas via XML Schema Imports/Includes

Source: https://www.xbrl.org/Specification/XBRL-2.1/REC-2003-12-31/XBRL-2

This snippet demonstrates how taxonomy schemas are discovered when they reference other schemas using XML Schema's `import` or `include` elements. Any schema referenced in this manner from an already discovered schema must also be discovered.

```xml
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import schemaLocation="http://example.com/another_schema.xsd"/>
  <xsd:include schemaLocation="http://example.com/included_schema.xsd"/>
</xsd:schema>
```
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