Fair Value Measurements (Asset Measured At Fair Value On A Nonrecurring Basis) (Details) - Fair Value Measurements Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 25,535	$ 35,050
Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	12,102	11,182
One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	1,803	7,453
Assets fair value, Total	1,838	185
Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	207	390
Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	6,174	9,845
Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	3,411	2,274
Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		3,721
Level 2 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	5,214	11,174
Level 2 Inputs [Member] | One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	1,803	7,453
Level 2 Inputs [Member] | Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	3,411
Level 2 Inputs [Member] | Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		3,721
Level 3 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	20,321	23,876
Level 3 Inputs [Member] | Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	12,102	11,182
Level 3 Inputs [Member] | One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	1,838	185
Level 3 Inputs [Member] | Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	207	390
Level 3 Inputs [Member] | Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 6,174	9,845
Level 3 Inputs [Member] | Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		$ 2,274