Note 4 - Earnings Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

4.             Earnings Per Share

The following table shows our basic and diluted EPS calculations:

	Year Ended December 31,
	2014			2013			2012
	(Dollars in thousands, except per share amounts)
Numerator
Net income	$	63,143		$	314,385		$	62,699
Less: distributed earnings allocated to participating securities		(196	)		-			(1,101	)
Less: undistributed earnings allocated to participating securities		(60	)		(4,917	)		-
Net income attributable to common stockholders (numerator for basic earnings per share)		62,887			309,468			61,598
Add back: undistributed earnings allocated to participating securities		60			4,917			-
Less: undistributed earnings reallocated to participating securities		(60	)		(4,879	)		-
Numerator for diluted earnings per share under two class method	$	62,887		$	309,506		$	61,598
Denominator
Weighted-average common shares outstanding		48,615,541			48,453,119			47,660,629
Add: dilutive effect of stock options		202,025			378,666			173,527
Denominator for diluted earnings per share under two class method		48,817,566			48,831,785			47,834,156
Basic Earnings Per Common Share	$	1.29		$	6.39		$	1.29
Diluted Earnings Per Common Share	$	1.29		$	6.34		$	1.29

Diluted EPS for the years ended December 31, 2014, 2013 and 2012 excluded options to purchase approximately 4.3 million, 3.8 million and 4.7 million shares, respectively, of common stock because the effect of their inclusion would be anti-dilutive.