Note 4 - Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended March 31,
	2014			2013
	(Dollars in thousands, except per share amounts)
Numerator:
Net income	$	38,159		$	21,824
Less: Net income allocated to preferred shareholder		(9,147	)		(8,903	)
Less: Net income allocated to unvested restricted stock		(59	)		(22	)
Net income available to common stockholders for basic earnings per common share		28,953			12,899
Effect of dilutive securities:
Net income allocated to preferred shareholder		9,147			8,903
Interest on 1¼% convertible senior notes due 2032, included in cost of sales		41			41
Net income available to common and preferred stock for diluted earnings per share	$	38,141		$	21,843
Denominator:
Weighted average basic common shares outstanding		277,948,342			214,166,912
Weighted average additional common shares outstanding if preferred shares converted to common shares (if dilutive		87,812,786			147,812,786
Total weighted average common shares outstanding if preferred shares converted to common shares		365,761,128			361,979,698
Effect of dilutive securities:
Stock options and stock appreciation rights		6,633,777			7,467,654
1¼% convertible senior notes due 2032		31,312,850			31,312,850
Weighted average diluted shares outstanding		403,707,755			400,760,202
Income per common share:
Basic	$	0.10		$	0.06
Diluted	$	0.09		$	0.05