Debt Financing (Aggregate Annual Principal Payments On Debt Associated With Assets Held For Use And Held For Sale) (Details) $ in Thousands	Sep. 30, 2015 USD ($)
Maturities of Long-term Debt [Line Items]
Remainder of 2015	$ 20,815
2016	1,824
2017	42,256
2018	244
2019	0
Thereafter	0
Long-term debt, Total	65,139
Held For Sale [Member]
Maturities of Long-term Debt [Line Items]
Remainder of 2015	10,339
2016	0
2017	0
2018	0
2019	0
Thereafter	0
Long-term debt, Total	10,339
Held For Use [Member]
Maturities of Long-term Debt [Line Items]
Remainder of 2015	10,476
2016	1,824
2017	42,256
2018	244
2019	0
Thereafter	0
Long-term debt, Total	$ 54,800