Non-Recourse and Limited Recourse Debt (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Long-term Debt, by Maturity
2013	$ 55,612
2014	36,106
2015	67,030
2016	294,198
2017	345,036
Thereafter through 2031	843,200
Long-term Debt	1,641,182
Unamortized Discount	(7,730)
Total	$ 1,633,452	$ 1,154,254

The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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