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Fair Value Measurements - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015 Grade
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted-average risk grade of loans underlying interest rate swaps measured at fair value	11.0cfr_WeightedAverageRiskGradeOfLoansUnderlyingInterestRateSwapsMeasuredAtFairValue
Default on the interest rate swaps, weighted average loss severity percentage	20.00%us-gaap_FairValueInputsLossSeverity

X

- Definition

Weighted-Average Risk Grade Of Loans Underlying Interest Rate Swaps Measured At Fair Value.

+ References

No definition available.

+ Details

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- Details

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X

- Definition

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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