Note 12 - Noncontrolling Interests (Detail) - Change In The Redemption Value Of The Redeemable Noncontrolling Interests (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Balance at January 1,	$ 2,697
Unit redemptions	4,758	4,873
Balance at September 30,	2,615
Change In The Redemption Value [Member]
Balance at January 1,	95,060	100,304
Unit redemptions		(5,209)
Fair market value amortization	15	3
Other	(16)	(69)
Balance at September 30,	$ 95,059	$ 95,029