Debt Financing (Aggregate Annual Principal Payments On Debt Associated With Assets Held For Use And Held For Sale) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Maturities of Long-term Debt [Line Items]
Remainder of 2014	$ 16,895
2015	30,266
2016	4,510
2017	42,678
2018	2,857
Thereafter	0
Long-term debt, Total	97,206
Held For Sale [Member]
Maturities of Long-term Debt [Line Items]
Remainder of 2014	16,235
2015	0
2016	0
2017	0
2018	0
Thereafter	0
Long-term debt, Total	16,235
Held For Use [Member]
Maturities of Long-term Debt [Line Items]
Remainder of 2014	660
2015	30,266
2016	4,510
2017	42,678
2018	2,857
Thereafter	0
Long-term debt, Total	$ 80,971