Mortgage Servicing Rights and Mortgage Servicing Activity (Estimated Amortization Expense for Mortgage Servicing Rights) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Transfers and Servicing [Abstract]
2016	$ 3,075
2017	2,723
2018	2,281
2019	1,917
2020	1,608
more than 5 years	6,934
Total estimated future amortization	$ 18,538

Future Amortization of Mortgage Servicing Rights (MSRs)

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Future Amortization of Mortgage Servicing Rights (MSRs), After Five Years

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Future Amortization of Mortgage Servicing Rights (MSRs), Year Five

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Future Amortization of Mortgage Servicing Rights (MSRs), Year Four

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Future Amortization of Mortgage Servicing Rights (MSRs), Year One

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Future Amortization of Mortgage Servicing Rights (MSRs), Year Three

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Future Amortization of Mortgage Servicing Rights (MSRs), Year Two

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