v2.4.0.8

Share-Based Compensation - Number and Weighted Average Exercise Price of Outstanding and Exercisable Options (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Options Outstanding	8,911	8,368	8,277	6,941
Average Remaining Contractual Life, Options Outstanding	6 years 1 month 13 days	6 years 4 months 24 days
Number of Options, Options Exercisable	5,188	4,632	3,636
$2.75 to $4.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 2.75
Range of Exercise Prices, Upper	$ 4.00
Number of Options, Options Outstanding	279	425
Average Remaining Contractual Life, Options Outstanding	1 year 4 days	1 year 5 months 27 days
Number of Options, Options Exercisable	279	425
$4.67 to $12.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 4.67
Range of Exercise Prices, Upper	$ 12.00
Number of Options, Options Outstanding	696	745
Average Remaining Contractual Life, Options Outstanding	2 years 5 months 16 days	3 years 5 months 9 days
Number of Options, Options Exercisable	696	745
$12.87 to $16.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 12.87
Range of Exercise Prices, Upper	$ 16.00
Number of Options, Options Outstanding	549	580
Average Remaining Contractual Life, Options Outstanding	3 years 4 months 21 days	4 years 4 months 21 days
Number of Options, Options Exercisable	549	580
$17.84 to $23.98
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 17.84
Range of Exercise Prices, Upper	$ 23.98
Number of Options, Options Outstanding	3,635	2,592
Average Remaining Contractual Life, Options Outstanding	8 years 22 days	8 years 3 months
Number of Options, Options Exercisable	986	662
$24.00 to $28.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 24.00
Range of Exercise Prices, Upper	$ 28.99
Number of Options, Options Outstanding	1,708	1,811
Average Remaining Contractual Life, Options Outstanding	6 years 2 months 12 days	6 years 11 months 23 days
Number of Options, Options Exercisable	1,077	885
$29.07 to $31.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 29.07
Range of Exercise Prices, Upper	$ 31.99
Number of Options, Options Outstanding	1,734	1,902
Average Remaining Contractual Life, Options Outstanding	5 years 4 months 13 days	6 years 3 months 18 days
Number of Options, Options Exercisable	1,311	1,090
$32.21 to $38.30
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 32.21
Range of Exercise Prices, Upper	$ 38.30
Number of Options, Options Outstanding	117	117
Average Remaining Contractual Life, Options Outstanding	5 years 3 months 11 days	6 years 3 months 11 days
Number of Options, Options Exercisable	98	75
$38.60 to $41.51
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower	$ 38.60
Range of Exercise Prices, Upper	$ 41.51
Number of Options, Options Outstanding	193	196
Average Remaining Contractual Life, Options Outstanding	4 years 4 months 24 days	5 years 4 months 28 days
Number of Options, Options Exercisable	192	170

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Period Type:	instant

X

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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