Debt (Aggregate Future Principal And Interest Payments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Debt Instruments [Abstract]
2013	$ 215,311
2014	31,753
2015	243,268
2016	15,750
2017	$ 15,750

Long Term Debt Maturities Repayment of Principal and Interest Year Five

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Long-term Debt, Maturities, Repayments of Principal and Interest in Next Twelve Months

No definition available.

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Long-term Debt, Maturities, Repayments of Principal and Interest in Year Four

No definition available.

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Long-term Debt, Maturities, Repayments of Principal and Interest in Year Three

No definition available.

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Long-term Debt, Maturities, Repayments of Principal Interest in Year Two

No definition available.

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