Share Capital (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders Equity Note Abstract

Summary of ordinary shares issued and outstanding

(In thousands)	2012		2011
Balance - beginning of year	$	315,646	$	316,396
Exercise of options		383		72
Net issuance of restricted shares		959		413
Share buybacks (1)		(18,306)		(31,692)
Issue of shares		-		30,457
Balance - end of year	$	298,682	$	315,646

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(1)Includes share buybacks associated with authorized share buyback programs as well as purchases related to satisfying tax withholding obligations of employees in connection with the vesting of restricted shares granted under the Company's restricted stock plan.

Weighted average option pricing assumptions

	2012	2011	2010
Dividend yield	1.90%	1.90%	3.25%
Risk free interest rate	1.15%	2.60%	2.67%
Volatility	46.00%	50.03%	71.09%
Expected lives	6.0 years	6.0 years	6.0 years

Summary of options and options activity

(U.S. Dollars in thousands except for weighted average fair value)	2012		2011		2010
Options granted to purchase ordinary shares under directors and employees incentive compensation plans		1,209		974		1,023
Weighted average grant date fair value	$	7.65	$	9.81	$	9.17
Total intrinsic value of stock options exercised	$	3,357	$	301	$	667
Options exercised during the year		383		72		91
Compensation expense related to stock option plans	$	7,716	$	11,848	$	12,766
Estimated tax benefit related to stock option plans	$	26	$	722	$	2,347

					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
	Number of		Exercise		Contractual		Intrinsic
(U.S. Dollars in thousands, except for option price and term)	Shares		Price		Term		Value
Outstanding - beginning of year		12,997	$	46.30		4.9 years	$	20,585
Granted		1,209		20.71
Exercised		(383)		14.49
Canceled/Expired		(1,732)		89.90
Outstanding - end of year		12,091	$	38.50		5.0 years	$	46,803
Options exercisable		9,856	$	42.50		4.2 years	$	37,435
Available for grant (1)		15,695

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(1)Available for grant includes shares that may be granted as either stock options, restricted stock, restricted stock units or performance units.

Summary of restricted stock and non-vested restricted stock activity

(In thousands except for weighted average fair value)	2012		2011		2010
Restricted ordinary shares granted		325		49		63
Weighted average grant date fair value	$	20.92	$	23.33	$	17.26
Aggregate grant date fair value	$	6,811	$	1,140	$	1,080
Compensation expense related to restricted stock awards	$	5,399	$	7,101	$	18,420
Estimated tax benefit related to restricted stock awards	$	1,113	$	1,546	$	4,645

			Weighted
	Number		Average Grant
(In thousands except for weighted average grant date fair value)	of Shares		Date Fair Value
Unvested at December 31, 2011		390	$	42.86
Granted		325	$	20.92
Vested		(161)	$	31.08
Forfeited		(4)	$	43.06
Unvested at December 31, 2012		550	$	33.34

Summary of restricted stock units and restricted stock unit activity

(In thousands)	2012		2011		2010
Restricted stock units granted		1,312		1,318		1,392
Aggregate grant date fair value	$	27,194	$	30,027	$	25,887
Compensation expense related to restricted stock units	$	24,451	$	15,033	$	5,862
Estimated tax benefit related to restricted stock units	$	6,501	$	3,998	$	1,557

			Weighted
	Number		Average Grant
(In thousands except for weighted average grant date fair value)	of Shares		Date Fair Value
Unvested at December 31, 2011		2,063	$	21.13
Granted		1,312	$	20.72
Vested		(836)	$	20.73
Forfeited		(93)	$	21.42
Unvested at December 31, 2012		2,446	$	21.04

Summary of performance units and performance units activity

(In thousands)	2012		2011		2010
Performance units granted		1,527		1,289		1,579
Potential maximum share payout		3,054		2,578		3,158
Aggregate grant date fair value	$	29,537	$	28,544	$	27,160
Compensation expense related to performance units	$	9,919	$	7,242	$	7,009
Estimated tax benefit related to performance units	$	1,943	$	1,419	$	1,470

			Weighted
	Number		Average Grant
(In thousands except for weighted average grant date fair value)	of Shares		Date Fair Value
Unvested at December 31, 2011		1,735	$	19.47
Granted		1,527	$	19.34
Vested		(7)	$	17.20
Forfeited		(98)	$	20.34
Performance driven reduction		(601)	$	18.24
Unvested at December 31, 2012		2,556	$	20.07