As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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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.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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The combined weighted average exercise price associated with stock options during the period that have either lapsed or been forfeited.

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Net number of share options (or share units) granted during the period.

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The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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The weighted-average period between the balance sheet date and expiration date for fully vested and expected to vest options outstanding, which may be expressed in a decimal value for number of years.

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Number of share options (or share units) exercised during the current period.

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Accelerated stock options vested to executive chairman during the reporting period.

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Annual grant of equity instruments other than options to executives as per the arrangement.

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Period after which performance awards may be exercised upon death which may be expressed in a variety of ways (for example, years, months).

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Period after which performance-based RSUs may be exercised following the resignation of an executive officer.

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RSUs vested and contributed to Estate of executive chairman upon Company's achievement of performance-based criteria.

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RSUs vested and contributed to Estate of executive chairman upon his death.

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RSUs vested upon resignation of executive officer

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RSUs vested upon resignation of an executive officer and the company's achievment of performance-based criteria.

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As of the balance sheet date, the number of equity-based payment instruments, excluding stock (or unit) options into which fully vested and expected to vest equity-based payment instruments other than stock (or unit) options outstanding can be converted under the plan.

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The number of non-vested stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on option plans as at the reporting date.

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Number of stock or unit options that vested during the reporting period.

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Expiration date of the 2007 Stock Incentive Plan.

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The weighted average fair value at grant date for phantom stock units.

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The number of Phantom stock units, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The number of phantom stock units granted during the period.

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- Definition

The number of phantom stock units redeemed for common stock.

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- Definition

The stock price as of the last day of the period.

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Stock-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 1,370	$ 680	$ 6,106	$ 2,021
Unrecognized Compensation Cost	5,282		5,282
Expiration date of the 2007 stock incentive plan			May 22, 2017
RSUs vested upon resignation of executive officer			18,438
RSUs vested upon resignation of executive officer and company's achievement of performance-based criteria (in shares)			55,316
Period after which performance-based RSUs may be exercised upon the resignation of an executive officer (in years)			1
Accelerated stock options vested to executive employee (in shares)			29,459
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)	3,000,000		3,000,000
Outstanding:
Balance			1,254,000
Balance (in dollars per share)			$ 15.04
Granted (in shares)			0
Granted (in dollars per share)	$ 0.00		$ 0.00
Exercised (in shares)			(650,621)
Exercised (in dollars per share)	$ 14.87		$ 14.87
Cancelled or forfeited (in shares)			(219,000)
Cancelled or forfeited (in dollars per share)			$ 14.92
Balance	384,000		384,000
Balance (in dollars per share)	$ 15.40		$ 15.40
Remaining contractual term of options, vested and expected to vest at October 1, 2011	2.07		2.07
Vested and expected to vest [Abstract]
Vested and expected to vest (in shares)	384,000		384,000
Vested and expected to vest (in dollars per share)	$ 15.40		$ 15.40
Remaining contractual term of options, exercisable at October 1, 2011			1.99
Exercisable (in shares)	323,000		323,000
Exercisable (in dollars per share)	$ 15.33		$ 15.33
Share-based compensation arrangement by share-based payment award, options, non-vested, outstanding (in shares)	61,000		61,000
Share-based compensation arrangement by share-based payment award, options, non-vested, weighted average grant date fair value (in dollars per share)	$ 9.96		$ 9.96
Stock price per share (in dollars per share)	$ 8.36		$ 8.36
Share-based compensation arrangement by share-based payment award, options, exercisable, intrinsic value	11		11
Stock options exercised (in shares)			650,621
Intrinsic value under share based compensation scheme			1,693
Outstanding:
Balance (in shares)			634,000
Balance (in dollars per share)			$ 9.61
Granted (in shares)			423,000
Granted (in dollars per share)			$ 16.57
Vested (in shares)			(145,000)
Vested (in dollars per share)			$ 11.20
Cancelled or forfeited (in shares)			0
Cancelled or forfeited (in dollars per share)	$ 0.00		$ 0.00
Balance (in shares)	912,000		912,000
Balance (in dollars per share)	$ 12.59		$ 12.59
Expected to vest at October 1, 2011 (in shares)	912,000		912,000
Number of RSUs with performance-based vesting criteria expected to vest	324,000		324,000
Number of RSUs with performance-based vesting criteria expected to vest	233,000		233,000
Annual grant of equity instruments other than options to executives (in shares)			5,000
Phantom stock units held by executive estate redeemed as common stock (in shares)			43,667
Outstanding:
Balance (in shares)			116,000
Granted (in shares)			15,000
Granted (in dollars per share)			$ 14.78
Redeemed for common stock (in shares)			(43,667)
Balance (in shares)	87,000		87,000
Share-based compensation arrangement by share-based payment award, options, vested during period (in shares)			192,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	14	168	(111)	522
Accelerated stock options vested to executive chairman (in shares)			77,334
Period after which performance-based RSU's may be exercised upon death of executive chairman (in years)	1
Unrecognized Compensation Cost	120		120
Weighted Average Remaining Amortization Periods			1.3
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	1,356	512	5,995	1,324
RSU's vested and contributed to estate of executive chairman upon his death (in shares)			98,375
RSU's vested and contributed to estate of executive chairman upon company's achievement of performance-based criteria (in shares)			202,330
Unrecognized Compensation Cost	5,162		5,162
Weighted Average Remaining Amortization Periods			1.7
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	0	0	222	175
Unrecognized Compensation Cost	$ 0		$ 0
Weighted Average Remaining Amortization Periods			0
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)	300,000		300,000