- Definition
                Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.
               
+ References
                Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 275
 -SubTopic 10
 -Section 50
 -Paragraph 16
 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6327-108592
Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 275
 -SubTopic 10
 -Section 50
 -Paragraph 20
 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592
Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 825
 -SubTopic 10
 -Section 50
 -Paragraph 20
 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611
Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 275
 -SubTopic 10
 -Section 50
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 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592
Reference 5: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 825
 -SubTopic 10
 -Section 50
 -Paragraph 21
 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611
Reference 6: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 275
 -SubTopic 10
 -Section 50
 -Paragraph 21
 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6442-108592
               
+ Details
                
| Name: | us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | nonnum:textBlockItemType | 
| Balance Type: | na | 
| Period Type: | duration |