Fair Value Accounting and Measurement (Quantitative Information About Level 3 Fair Value Measurements) (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified													3 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2014 Noncovered Loans [Member]	Jun. 30, 2013 Noncovered Loans [Member]	Jun. 30, 2014 Noncovered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Noncovered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2014 Covered Loans [Member]	Jun. 30, 2013 Covered Loans [Member]	Jun. 30, 2014 Covered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Covered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Real Estate Collateral [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Other Collateral [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Other Collateral [Member] Market Approach Valuation Technique [Member] Impaired Loans [Member] Weighted Average [Member] Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans	$ 4,198	$ 4,198									$ 3,777	$ 421
OREO			$ 1,389	$ 1,965	$ 1,389	$ 1,965	$ 1,837	$ 395	$ 1,837	$ 395
Fair Value Inputs, Comparability Adjustments													50.00%	[1],[2]

[1] (1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable and inventory).

[2] Other collateral consists of accounts receivable and inventory.