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Note 9 - Convertible Notes and Non-recourse Notes (Detail) - Interest Expense For Our Series 2012 Notes (Series 2012 Notes [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Series 2012 Notes [Member]
Contractual coupon interest	$ 1,287	$ 3,836
Amortization of debt issuance costs	279	826
Amortization of debt discount	1,439	4,219
Total	$ 3,005	$ 8,881

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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