Note 8 - Earnings Per Common Share (Detail) - Basic and Diluted Earnings per Common Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Net (loss) income	$ (48,527)		$ 8,942		$ (34,270)		$ 29,639
Preferred dividends			(2,413)				(7,238)
Accretion on preferred stock			(173)				(511)
Net loss (income) applicable to non-vested restricted shares	715		(93)		500		(330)
Net (loss) income applicable to common shares	$ (47,812)		$ 6,263		$ (33,770)		$ 21,560
Weighted-average common shares outstanding:
Weighted-average common shares outstanding (basic) (in Shares)	73,742		73,361		73,636		73,258
Weighted-average diluted common shares outstanding (in Shares)	73,742		73,361		73,636		73,258
Basic (loss) earnings per share (in Dollars per share)	$ (0.65)		$ 0.09		$ (0.46)		$ 0.29
Diluted (loss) earnings per share (in Dollars per share)	$ (0.65)		$ 0.09		$ (0.46)		$ 0.29
Anti-dilutive shares not included in the computation of diluted earnings per share (1) (in Shares)	1,740	[1]	3,561	[1]	1,786	[1]	3,637	[1]

[1] Represents outstanding stock options (and common stock warrants for the 2011 period for which the exercise price is greater than the average market price of the Company's common stock.