Instance documents
XBRL instance documents are electronic reports created according to the XBRL taxonomy.
An instance document contains concepts with a given value and a context in which those
concepts are used.
An instance document defines contexts such as period or measure.
For example:
<context id="I-2002">
- <entity>
<identifier
scheme="http://www.SampleCompany.com">SAMP
</identifier>
</entity>
- <period>
<instant>2002-12-31</instant>
</period>
</context>
and
<context id="I-2003">
- <entity>
<identifier
scheme="http://www.SampleCompany.com">SAMP</identi
fier>
</entity>
- <period>
<instant>2003-12-31</instant>
</period>
</context>
define two instant moments.
The unit tag defines the type of the monetary item. In our case EURO.
<unit id="U-Monetary">
<measure>iso4217:EUR</measure>
</unit>
Element’s definition in the taxonomy:
<element id="ci_ComputerEquipment" name="ComputerEquipment"
type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"
xbrli:periodType="instant" nillable="true" />
The following tags define the effective use and the contexts of the concept
ComputerEquipment in the instance file.
<ci:ComputerEquipment contextRef="I-2002" unitRef="U-
Monetary">5313000</ci:ComputerEquipment>
<ci:ComputerEquipment contextRef="I-2003" unitRef="U-
Monetary">4169000</ci:ComputerEquipment>