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Other Events - (Narrative) (Details) (Federal Housing Finance Agency [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014
Federal Housing Finance Agency [Member] |
Litigation Settlement Amount | $ 110.0

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration