Note 13. Income (Loss) per Common Share (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

	Year ended December 31,
	2011			2010			2009
Numerator
Net income	$	151,164		$	48,983		$	67,826
Preferred stock dividends		(552	)		(13,633	)		(13,633	)
Net income (loss) applicable to common shares	$	150,612		$	35,350		$	54,193
Denominator
Basic weighted average common shares		280,956			251,146			224,933
Dilutive stock options, restricted stock, and warrants		16,077			18,455			8,685
Diluted weighted average common shares		297,033			269,601			233,618
Basic earnings per common share	$	0.54		$	0.14		$	0.24
Diluted earnings per common share	$	0.51		$	0.13		$	0.23

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Year ended December 31,
	2011		2010		2009
Stock options		552,388		596,388		1,022,240
Warrants to purchase common shares		—		—		12,173,913
Total potential dilutive common shares		552,388		596,388		13,196,153