XML 110 R103.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Gross Realized Gains and Losses on Sales and Calls of Available for Sale Securities (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items] |  |  |
Gross realized gains | $ 15,030 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains | $ 24,613 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains | $ 33,909 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Gross realized losses | (2,713)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses | (214)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses | (1,600)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
Total Realized Gains on Sales and Calls of AFS Securities, Net | 13,917 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet | 24,765 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet | 32,451 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Call Option |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Gross realized gains | $ 1,600 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_OptionIndexedToIssuersEquityEquityAxis = us-gaap_CallOptionMember | $ 366 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_OptionIndexedToIssuersEquityEquityAxis = us-gaap_CallOptionMember | $ 142 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_OptionIndexedToIssuersEquityEquityAxis = us-gaap_CallOptionMember

X
- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OptionIndexedToIssuersEquityEquityAxis=us-gaap_CallOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |