Note 5 - Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

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

	Three Months Ended March 31,
	2016			2015
	(Dollars in thousands, except per share amounts)
Numerator:
Net income	$	72,661		$	31,605
Less: Net income allocated to preferred shareholder	-				(7,662	)
Less: Net income allocated to unvested restricted stock		(113	)		(67	)
Net income available to common stockholders for basic earnings per common share		72,548			23,876
Effect of dilutive securities:
Net income allocated to preferred shareholder	-				7,662
Interest on 1.625% convertible senior notes due 2018		(370	)	-
Interest on 0.25% convertible senior notes due 2019		82		-
Interest on 1.25% convertible senior notes due 2032		62			41
Net income available to common and preferred stock for diluted earnings per share	$	72,322		$	31,579
Denominator:
Weighted average basic common shares outstanding		120,814,939			54,727,121
Weighted average additional common shares outstanding if preferred shares converted to common shares (if dilutive)	-				17,562,557
Total weighted average common shares outstanding if preferred shares converted to common shares		120,814,939			72,289,678
Effect of dilutive securities:
Share-based awards		561,065			1,088,673
1.625% convertible senior notes due 2018		7,157,934		-
0.25% convertible senior notes due 2019		3,634,072		-
1.25% convertible senior notes due 2032		6,262,570			6,262,570
Weighted average diluted shares outstanding		138,430,580			79,640,921
Income per common share:
Basic	$	0.60		$	0.44
Diluted	$	0.52		$	0.40