- DefinitionAmount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 350
 -SubTopic 20
 -Section 50
 -Paragraph 1
 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267
Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 350
 -SubTopic 20
 -Section 45
 -Paragraph 1
 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266
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| Namespace Prefix: | us-gaap_ | 
| Data Type: | xbrli:monetaryItemType | 
| Balance Type: | debit | 
| Period Type: | instant |