Goodwill and Other Intangible Assets Estimated Future Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Core Deposits Member
Estimated future amortization expense
Year ending December 31, 2014	$ 2,868
Year ending December 31, 2015	1,404
Year ending December 31, 2016	281
Year ending December 31, 2017	112
Year ending December 31, 2018	0
Beyond 2018	0
Total Estimated Amortization Expense	4,665
Other Intangible Assets [Member]
Estimated future amortization expense
Year ending December 31, 2014	879
Year ending December 31, 2015	839
Year ending December 31, 2016	803
Year ending December 31, 2017	770
Year ending December 31, 2018	740
Beyond 2018	2,488
Total Estimated Amortization Expense	6,519
Mortgage Service Rights [Member]
Estimated future amortization expense
Year ending December 31, 2014	10,009
Year ending December 31, 2015	8,412
Year ending December 31, 2016	7,058
Year ending December 31, 2017	5,952
Year ending December 31, 2018	5,033
Beyond 2018	27,729
Total Estimated Amortization Expense	$ 64,193