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Short-Term Borrowings and Long-Term Debt Maturiities (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Short-Term Borrowings and Long-Term Debt [Abstract]  
2014 $ 235,937
2015 114,539
2016 0
2017 186,760
2018 142,370
Thereafter 269,936
Long Term Debt Maturities Total $ 949,542