Note 12 - Convertible and Non-Recourse Notes (Detail) - Convertible and Non-Recourse Notes (USD $) In Thousands, unless otherwise specified	12 Months Ended							8 Months Ended		12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2011 Due 2012 [Member]		Dec. 31, 2011 Convertible February 2015 Notes [Member]		Dec. 31, 2011 Convertible May 2015 Notes [Member]		Dec. 31, 2011 Convertible May 2015 Notes [Member]		Dec. 31, 2011 Non-Recourse Notes [Member]		Nov. 30, 2009 Non-Recourse Notes [Member]
Balance at December 31, 2010	$ 514,698			$ 133,464		$ 176,964						$ 204,270		$ 300,000
Issuance	136,313									136,313
Payment	(110,900)		(95,730)									(110,900)
Repurchase	(133,464)			(133,464)
Discount amortization	3,338					699		2,639		2,639
Balance at December 31, 2011	409,985		514,698			177,663		138,952		138,952		93,370		300,000
Fair value (1)	$ 442,835	[1]			[1]	$ 191,475	[1]	$ 156,123	[1]	$ 156,123	[1]	$ 95,237	[1]

[1] As of December 31, 2011, the fair value of the remaining payments under our convertible notes and Non-recourse Notes was estimated based on the trading value of our notes then outstanding.