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

9 Months Ended

Sep. 30, 2012

Earnings Per Share Abstract

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

(U.S. dollars in thousands, except per share amounts)		Three Months Ended				Nine Months Ended
Basic earnings per ordinary share &		September 30,		September 30,		September 30,		September 30,
ordinary share equivalents outstanding:		2012		2011		2012		2011
	Net income (loss) attributable to ordinary shareholders	$	171,902	$	42,398	$	569,686	$	40,777
	Weighted average ordinary shares outstanding - basic		304,199		311,714		309,675		310,793
	Basic earnings per ordinary share & ordinary share equivalents outstanding	$	0.57	$	0.14	$	1.84	$	0.13
Diluted earnings per ordinary share &
ordinary share equivalents outstanding:
	Net income (loss) attributable to ordinary shareholders	$	171,902	$	42,398	$	569,686	$	40,777
	Weighted average ordinary shares outstanding - basic		304,199		311,714		309,675		310,793
	Impact of share based compensation and certain conversion features		3,565		2,134		2,927		4,049
	Weighted average ordinary shares outstanding - diluted		307,764		313,848		312,602		314,842
	Diluted earnings per ordinary share & ordinary share equivalents outstanding	$	0.56	$	0.14	$	1.82	$	0.13
Dividends per ordinary share		$	0.11	$	0.11	$	0.33	$	0.33