Note 5 - Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(Dollars in thousands, except per share amounts)
Numerator:
Net income	$	132,348		$	47,177		$	317,769		$	135,980
Less: Net income allocated to preferred shareholder		―			(11,342	)		―			(32,818	)
Less: Net income allocated to unvested restricted stock		(294	)		(93	)		(635	)		(274	)
Net income available to common stockholders for basic earnings per common share		132,054			35,742			317,134			102,888
Effect of dilutive securities:
Net income allocated to preferred shareholder		―			11,342			―			32,818
Interest on 1.625% convertible senior notes due 2018		91			―			1,088			―
Interest on 0.25% convertible senior notes due 2019		82			―			984			―
Interest on 1.25% convertible senior notes due 2032		62			41			744			490
Net income available to common and preferred stock for diluted earnings per share	$	132,289		$	47,125		$	319,950		$	136,196
Denominator:
Weighted average basic common shares outstanding		118,338,891			55,345,443			119,188,145			55,059,683
Weighted average additional common shares outstanding if preferred shares converted to common shares (if dilutive)		―			17,562,557			―			17,562,557
Total weighted average common shares outstanding if preferred shares converted to common shares		118,338,891			72,908,000			119,188,145			72,622,240
Effect of dilutive securities:
Share-based awards		643,602			684,511			605,860			830,501
1.625% convertible senior notes due 2018		7,165,845			―			7,165,845			―
0.25% convertible senior notes due 2019		3,638,080			―			3,638,080			―
1.25% convertible senior notes due 2032		6,290,997			6,262,570			6,290,997			6,262,570
Weighted average diluted shares outstanding		136,077,415			79,855,081			136,888,927			79,715,311
Income per common share:
Basic	$	1.12		$	0.65		$	2.66		$	1.87
Diluted	$	0.97		$	0.59		$	2.34		$	1.71