Fair Value Measurements (Schedule of Fair Value Disclosures Measured On Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Fair Value [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Impaired Loans	$ 10,603	$ 6,731
Private Equity Investments Nonrecurring Basis	1,309	675
Mortgage servicing rights	793	602
Foreclosed assets	1,191	291
Long-lived assets	7,246	0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Impaired Loans	0	0
Private Equity Investments Nonrecurring Basis	0	0
Mortgage servicing rights	0	0
Foreclosed assets	0	0
Long-lived assets	0	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Impaired Loans	0	0
Private Equity Investments Nonrecurring Basis	0	0
Mortgage servicing rights	0	0
Foreclosed assets	0	0
Long-lived assets	0	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Impaired Loans	10,603	6,731
Private Equity Investments Nonrecurring Basis	1,309	675
Mortgage servicing rights	793	602
Foreclosed assets	1,191	291
Long-lived assets	7,246	0
Total Gains (Losses) Recognized During The Period [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans Nonrecurring Basis Gains Losses	(3,124)	(1,967)
Private Equity Investments Nonrecurring Basis Gains Losses	(1,191)	(325)
Mortgage Servicing Rights Nonrecurring Basis Gains Losses	1	187
Foreclosed Assets Nonrecurring Basis Gains Losses	(319)	(135)
Long Lived Assets Nonrecurring Basis Gains Losses	$ (1,408)	$ 0