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Debt (Scheduled Payments Due on Long-Term Debt) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
2016 $ 5,000
2017 11,000
2018 14,250
2019 190,000
2020 46,000
Thereafter 341,335
Debt Instrument, Face Amount $ 607,585