Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Calculation of earnings per share

The following table sets forth the computation of basic and diluted earnings per ordinary share for the three and nine months ended September 30, 2014 and 2013:

	Three Months Ended September 30,				Nine Months Ended September 30,
(U.S. dollars in thousands, except per share amounts)	2014		2013		2014		2013
Basic earnings per ordinary share & ordinary share equivalents outstanding:
Net income (loss) attributable to ordinary shareholders	$	72,384	$	135,648	$	48,840	$	759,136
Weighted average ordinary shares outstanding, in thousands - basic	264,353		285,393		270,494		289,957
Basic earnings per ordinary share & ordinary share equivalents outstanding	$	0.27	$	0.48	$	0.18	$	2.62
Diluted earnings per ordinary share & ordinary share equivalents outstanding:
Weighted average ordinary shares outstanding, in thousands - basic	264,353		285,393		270,494		289,957
Impact of share-based compensation and certain conversion features, in thousands	4,787		5,097		4,418		4,871
Weighted average ordinary shares outstanding, in thousands - diluted	269,140		290,490		274,912		294,828
Diluted earnings per ordinary share & ordinary share equivalents outstanding	$	0.27	$	0.47	$	0.18	$	2.57
Dividends per ordinary share	$	0.16	$	0.14	$	0.48	$	0.42