XML 33 R62.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Estimated Fair Values Estimated Fair Values (Fair Value Option) (Details) (Loans Held For Sale, USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Loans Held For Sale |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Gains (Losses) From Fair Value Changes | $ 430 us-gaap_FairValueOptionChangesInFairValueGainLoss1 / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember |
Fair Value Of Items For Which Fair Value Option Was Elected Assets | 66,508 fcnca_FairValueOfItemsForWhichFairValueOptionWasElectedAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember | 63,696 fcnca_FairValueOfItemsForWhichFairValueOptionWasElectedAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember
Aggregate Unpaid Principal Balance Of Items For Which Fair Value Option Was Elected Assets | 65,378 fcnca_AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember | 62,996 fcnca_AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember
Fair Value Option Aggregate Difference Assets | $ 1,130 fcnca_FairValueOptionAggregateDifferenceAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember | $ 700 fcnca_FairValueOptionAggregateDifferenceAssets / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = fcnca_LoansHeldForSaleMember

X
- Definition Represents the aggregate unpaid principal balance of assets for which the fair value option was elected. + References No definition available. + Details
Name: | fcnca_AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets
Namespace Prefix: | fcnca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the fair value of assets for which the fair value option was elected. + References No definition available. + Details
Name: | fcnca_FairValueOfItemsForWhichFairValueOptionWasElectedAssets
Namespace Prefix: | fcnca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition For assets for which the fair value option has been elected, this item represents the difference between the fair value and the aggregate unpaid principal balance for those assets. + References No definition available. + Details
Name: | fcnca_FairValueOptionAggregateDifferenceAssets
Namespace Prefix: | fcnca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
Name: | us-gaap_FairValueOptionChangesInFairValueGainLoss1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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