Stock-Based Compensation (Tables)

12 Months Ended

Dec. 30, 2011

Share-based Compensation [Abstract]

Stock-Based Compensation Expense Included in Selling, General and Administrative Expenses Related to Stock Options and Restricted Stock Awards

Stock-based compensation expense included in selling, general and administrative expenses related to stock options on a straight-line, single award basis, restricted stock awards and restricted stock units included in the accompanying Consolidated Statements of Income was as follows (U.S. dollars in millions, except per share data):

	Year ended
	December 30, 2011		December 31, 2010		January 1, 2010
Stock-based compensation expense	$	9.2	$	7.5	$	10.4
Stock-based compensation expense per diluted share	$	0.16	$	0.12	$	0.16

Stock Option Activity

The following table summarizes stock option activity for the years ended December 30, 2011, December 31, 2010 and January 1, 2010:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Fair Value
Options outstanding at December 26, 2008	3,533,823		$	23.24	$	8.51
Granted	1,529,750		21.33		8.03
Exercised	(62,200	)	16.19		5.74
Cancelled	(57,000	)	21.40		7.99
Options outstanding at January 1, 2010	4,944,373		22.76		8.40
Granted	161,000		20.13		7.46
Exercised	(135,722	)	16.63		5.90
Cancelled	(86,750	)	23.64		8.62
Options outstanding at December 31, 2010	4,882,901		22.82		8.44
Granted	1,081,000		24.19		8.65
Exercised	(1,166,849	)	19.52		7.19
Cancelled	(60,000	)	26.82		10.05
Options outstanding at December 30, 2011	4,737,052		$	23.90	$	8.74
Exercisable at January 1, 2010	2,425,373		$	23.79	$	8.75
Exercisable at December 31, 2010	3,199,901		$	23.18	$	8.54
Exercisable at December 30, 2011	2,908,052		$	24.48	$	9.00

Stock Option Grants

The following table lists the various stock option grants occurring for the years ended December 30, 2011 and December 31, 2010:

Stock Option Grant	Number of Options Granted	Exercise Price		Fair Value
August 3, 2011 - Employees	920,000	$	23.76	$	8.57
March 2, 2011 - Chairman and Chief Executive Officer	161,000	26.67		9.08
March 3, 2010 - Chairman and Chief Executive Officer	161,000	20.13		7.46

Weighted Average Assumptions Used in Black-Scholes Option Pricing Model

The following are the weighted average assumptions used in the Black-Scholes option pricing model for the periods indicated:

	Year ended
	December 30, 2011		December 31, 2010		January 1, 2010
Volatility	45.40	%	38.43	%	39.16	%
Risk-free rate	1.39	%	2.27	%	2.50	%
Dividend yield	1.54	%	—		—
Expected term of grant	5.0	years	5.0	years	4.9	years

Stock Options - Outstanding and Exercisable

Information about stock options outstanding at December 30, 2011 was as follows:

Exercise Price		Remaining Contractual Life	Outstanding	Outstanding Intrinsic Value		Exercisable	Exercisable Intrinsic Value
$	14.77	7.3 years	30,000	$	0.3	18,000	$	0.2
$	15.78	4.6 years	146,081	1.3		146,081	1.3
$	17.35	6.2 years	6,250	—		6,250	—
$	18.31	4.3 years	6,000	—		6,000	—
$	19.76	1.1 years	22,000	0.1		22,000	0.1
$	19.76	4.2 years	6,250	—		6,250	—
$	19.83	7.2 years	64,400	0.3		—	—
$	19.83	7.2 years	18,750	0.1		18,750	0.1
$	20.13	8.2 years	161,000	0.8		64,400	0.3
$	21.72	7.6 years	1,001,903	3.2		521,903	1.7
$	22.25	6.6 years	1,126,867	3.0		843,867	2.2
$	23.76	9.6 years	913,000	1.0		181,000	—
$	23.82	2.3 years	32,200	—		32,200	—
$	23.97	5.3 years	128,800	0.1		128,800	0.1
$	26.67	9.2 years	161,000	—		32,200	—
$	29.84	3.3 years	665,051	—		665,051	—
$	30.59	5.9 years	24,000	—		24,000	—
$	32.28	3.1 years	25,000	—		25,000	—
$	33.97	6.2 years	161,000	—		128,800	—
$	33.97	6.2 years	37,500	—		37,500	—
			4,737,052	$	10.2	2,908,052	$	6.0

Restricted Stock Units Award Activity

The following table lists the various restricted stock awards and related compensation expense under the Director's Equity Plan for the years ended December 30, 2011 and December 31, 2010 (U.S. dollars in millions except share and per share data):

Date of Award	Number of Restricted Stock Awarded	Price Per Share		Compensation Expense
January 3, 2011	27,853	$	25.14	$	0.7
May 5, 2010	32,956	21.24		0.7