Stock-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 1,141	$ 1,370	$ 3,549	$ 6,106
Unrecognized Compensation Cost	6,334		6,334
Expiration date of the 2007 stock incentive plan			May 22, 2017
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			384,000
Balance (in dollars per share)			$ 15.40
Granted (in shares)			0
Granted (in dollars per share)			$ 0.00
Exercised (in shares)			(22,095)
Exercised (in dollars per share)			$ 7.89
Cancelled or forfeited (in shares)			(253,000)
Cancelled or forfeited (in dollars per share)			$ 16.12
Balance	109,000		109,000
Balance (in dollars per share)	$ 15.24		$ 15.24
Weighted average remaining contractual life of options outstanding at September 29, 2012			4 years 5 months 27 days
Vested and expected to vest [Abstract]
Vested and expected to vest (in shares)	109,000		109,000
Vested and expected to vest (in dollars per share)	$ 15.24		$ 15.24
Remaining contractual term of options, vested and expected to vest at September 29, 2012			4 years 5 months 27 days
Exercisable (in shares)	79,000		79,000
Exercisable (in dollars per share)	$ 15.05		$ 15.05
Remaining contractual term of options, exercisable at September 29, 2012			4 years 5 months 8 days
Share-based compensation arrangement by share-based payment award, options, vested during period (in shares)			31,000
Share-based compensation arrangement by share-based payment award, options, non-vested, outstanding (in shares)	30,000		30,000
Share-based compensation arrangement by share-based payment award, options, non-vested, weighted average grant date fair value (in dollars per share)	$ 10.25		$ 10.25
Stock price (in dollars per share)	$ 9.83		$ 9.83
Share-based compensation arrangement by share-based payment award, options, exercisable, intrinsic value	0		0
Stock options exercised (in shares)			22,095
Intrinsic value under share based compensation scheme			110
Outstanding:
Balance (in shares)			891,000
Balance (in dollars per share)			$ 12.58
Granted (in shares)			437,000
Granted (in dollars per share)			$ 12.31
Vested (in shares)			(12,000)
Vested (in dollars per share)			$ 8.29
Cancelled or forfeited (in shares)			0
Cancelled or forfeited (in dollars per share)			$ 0.00
Balance (in shares)	1,316,000		1,316,000
Balance (in dollars per share)	$ 12.53		$ 12.53
Expected to vest at September 29, 2012 (in shares)	1,316,000		1,316,000
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2013	324,000		324,000
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2014	233,000		233,000
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2015	276,000		276,000
Outstanding:
Balance (in shares)			87,000
Granted (in shares)			10,000
Granted (in dollars per share)			$ 9.33
Redeemed for common stock			0
Balance (in shares)	97,000		97,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	13	14	60	(111)
Unrecognized Compensation Cost	31		31
Weighted Average Remaining Amortization Periods			7 months 6 days
Stock Options [Member] | Former Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Immediately Vested Upon Accelerating Event		77,334		77,334
Stock Options [Member] | Former Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Immediately Vested Upon Accelerating Event		29,459		29,459
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	1,128	1,356	3,396	5,995
Unrecognized Compensation Cost	6,303		6,303
Weighted Average Remaining Amortization Periods			1 year 4 months 24 days
Restricted Stock Units (RSUs) [Member] | Former Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Immediately Vested Upon Accelerating Event		98,375		98,375
Restricted Stock Units (RSUs) [Member] | Former Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Immediately Vested Upon Accelerating Event		18,438		18,438
Phantom Stock Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	0	0	93	222
Unrecognized Compensation Cost	$ 0		$ 0
Weighted Average Remaining Amortization Periods			0 days
Performance Vested Restricted Stock Units [Member] | Former Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares To Be Vested Immediately Upon Companys Achievement Of Performance Based Criteria		202,330		202,330
Performance Vested Restricted Stock Units [Member] | Former Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares To Be Vested Immediately Upon Companys Achievement Of Performance Based Criteria		55,316		55,316