Stock Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
Mar. 29, 2015	Mar. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation costs related to the shares of restricted stock	$ 393,000us-gaap_ShareBasedCompensation	$ 610,000us-gaap_ShareBasedCompensation
Payments Related To Tax Withholding For Share Based Compensation Minimum Tax Withholdings	393,000	286,000
Equity Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining contractual term	1 year 8 months 12 days
Aggregate intrinsic value for outstanding and exercisable options	10,600,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining contractual term	2 years 2 months 12 days
Stock compensation costs related to the shares of restricted stock	400,000
Unrecognized stock-based compensation expense related to non-vested shares of restricted stock	2,700,000
Number of years to vest restricted shares	4 years
Shares Paid for Tax Withholding for Share Based Compensation	29,355	18,525
Payments Related To Tax Withholding For Share Based Compensation Minimum Tax Withholdings	$ 393,000	$ 286,000

Number of years to vest restricted shares.

No definition available.

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- Definition

Equity impact of the shares withheld from restricted stock vesting for minimum tax withholdings.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

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

+ Details

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ 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

+ Details

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- Definition

Weighted average remaining contractual term of outstanding stock options, 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

+ Details

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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

+ Details

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