Fair Value Measurements Fair Value Measurements, Financial Instruments, Quantitative Information (Details)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Time Deposits [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	0.02%	0.02%
Contractual Yield, Maximum	5.50%	9.64%
Repricing (in years)	1 year 9 months 11 days	1 year 11 months 1 day
Discount Rate, Minimum	1.11%	0.76%
Discount Rate, Maximum	1.57%	1.33%
Other borrowings [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	0.25%	0.21%
Contractual Yield, Maximum	3.40%	1.52%
Repricing (in years)	1 day	1 month 12 days
Discount Rate, Minimum	0.20%	0.06%
Discount Rate, Maximum	2.89%	2.64%
Subordinated debentures [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	1.05%	0.92%
Contractual Yield, Maximum	1.05%	5.00%
Repricing (in years)	1 year 4 months 14 days	1 year 8 months 1 day
Discount Rate, Minimum	2.12%	2.14%
Discount Rate, Maximum	2.12%	2.14%
Commercial [Member] \| Loans [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	0.25%	0.17%
Contractual Yield, Maximum	30.00%	30.00%
Repricing (in years)	7 months 15 days	7 months 23 days
Discount Rate, Minimum	0.52%	0.51%
Discount Rate, Maximum	4.34%	4.34%
Commercial Real Estate [Member] \| Loans [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	0.38%	0.38%
Contractual Yield, Maximum	18.00%	18.00%
Repricing (in years)	8 months 24 days	10 months 3 days
Discount Rate, Minimum	0.95%	1.09%
Discount Rate, Maximum	3.93%	3.78%
Residential Portfolio Segment [Member] \| Loans [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	1.67%	1.20%
Contractual Yield, Maximum	18.00%	18.00%
Repricing (in years)	2 years 5 months 1 day	2 years 6 months
Discount Rate, Minimum	0.86%	0.64%
Discount Rate, Maximum	4.25%	3.99%
Personal [Member] \| Loans [Member]
Fair Value Inputs, Financial Instruments, Quantitative Information [Line Items]
Contractual Yield, Minimum	0.38%	0.38%
Contractual Yield, Maximum	21.00%	21.00%
Repricing (in years)	4 months 13 days	5 months 12 days
Discount Rate, Minimum	1.19%	1.04%
Discount Rate, Maximum	4.11%	3.98%

[Line Items] for Fair Value Inputs, Financial Instruments, Quantitative Information [Table]

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- Definition

Maximum discount rate in the range of discount rates used to calculate fair value of various financial instruments.

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Minimum discount rate in the range of discount rates used to calculate fair value of various financial instruments.

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Represents the estimated amount of time from the balance sheet date for the given financial instrument to reprice used in determining the fair value of the financial instrument.

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- Definition

Maximum contractual yield in the range of interest rates used to calculate fair value of various financial instruments.

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Minimum contracted yield in the range of interest rates used to calculate fair value of various financial instruments.

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