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v2.4.1.9

Summary of Significant Accounting Policies (Additional Cash Flow Information) (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accounting Policies [Abstract] |  |  |
Cash paid for interest | $ 14,705 us-gaap_InterestPaid | $ 22,449 us-gaap_InterestPaid | $ 29,378 us-gaap_InterestPaid
Cash paid for income tax | 62,976 us-gaap_IncomeTaxesPaid | 49,514 us-gaap_IncomeTaxesPaid | 58,950 us-gaap_IncomeTaxesPaid
Transfer of securities from available for sale to held to maturity | 0 cfr_TransferOfInvestmentSecuritiesToHeldToMaturityFromAvailableForSale | 0 cfr_TransferOfInvestmentSecuritiesToHeldToMaturityFromAvailableForSale | 2,266,195 cfr_TransferOfInvestmentSecuritiesToHeldToMaturityFromAvailableForSale
Unsettled purchases of securities | 0 cfr_UnsettledSecurityTransactions | 16,241 cfr_UnsettledSecurityTransactions | 90,073 cfr_UnsettledSecurityTransactions
Loans foreclosed and transferred to other real estate owned and foreclosed assets | 4,363 us-gaap_TransferOfOtherRealEstate | 6,870 us-gaap_TransferOfOtherRealEstate | 7,817 us-gaap_TransferOfOtherRealEstate
Premises and equipment transferred to other real estate owned and foreclosed assets | 1,740 us-gaap_OtherRealEstateDisposals | 0 us-gaap_OtherRealEstateDisposals | 0 us-gaap_OtherRealEstateDisposals
Loans to facilitate the sale of other real estate owned | 102 us-gaap_MortgageLoanRelatedToPropertySales1 | 678 us-gaap_MortgageLoanRelatedToPropertySales1 | 0 us-gaap_MortgageLoanRelatedToPropertySales1
Deferred gain on sale of building and parking garage | $ 0 us-gaap_GainLossOnDispositionOfAssets | $ 768 us-gaap_GainLossOnDispositionOfAssets | $ 0 us-gaap_GainLossOnDispositionOfAssets

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- Definition Unsettled Security Transactions + References No definition available. + Details
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- Details
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The amount of cash paid for interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition Mortgage loan related to property sales in noncash investing and financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition Disposals of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure. + References No definition available. + Details
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- Definition Value transferred out of real estate owned (REO) in noncash transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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