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Borrowings (Annual Maturities of Borrowings) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Debt Disclosure [Abstract]  
All borrowings, repayments of principal, 2016 $ 4,747
All borrowings, repayments of principal, 2017 5,031
All borrowings, repayments of principal, 2018 6,873
All borrowings, repayments of principal, 2019 4,400
All borrowings, repayments of principal, 2020 4,400
All borrowings, repayments of principal, thereafter $ 411,400