- DefinitionTabular disclosure of investment.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 325
 -URI http://asc.fasb.org/topic&trid=2197064
Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 321
 -URI http://asc.fasb.org/topic&trid=75115024
Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 320
 -URI http://asc.fasb.org/topic&trid=2196928
Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 323
 -URI http://asc.fasb.org/topic&trid=2196965
| Name: | us-gaap_InvestmentTableTextBlock | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | nonnum:textBlockItemType | 
| Balance Type: | na | 
| Period Type: | duration |