Stock-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 29, 2013	Dec. 31, 2012	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Stock-Based Compensation [Abstract]
Performance-based restricted stock units affected by failure to meet performance-based vesting criteria	233,000	276,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ (2,640)		$ 1,153	$ (1,592)	$ 2,408
Unrecognized Compensation Cost	12,814			12,814
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				109,000
Balance (in dollars per share)				$ 15.24
Exercised (in shares)				0
Balance	109,000	109,000		109,000
Balance (in dollars per share)	$ 15.24	$ 15.24		$ 15.24
Weighted average remaining contractual life of options outstanding at June 29, 2013				3 years 8 months 26 days
Vested and expected to vest [Abstract]
Vested and expected to vest (in dollars per share)	$ 15.24	$ 15.24		$ 15.24
Share-based compensation arrangement by share-based payment award, options, vested during period (in shares)				30,000
Share-based compensation arrangement by share-based payment award, options, non-vested, outstanding (in shares)	0			0
Stock price (in dollars per share)	$ 13.89			$ 13.89
Stock options exercised (in shares)				0
Intrinsic value under share based compensation scheme				37
Outstanding:
Balance (in shares)				1,316,000
Balance (in dollars per share)				$ 12.53
Granted (in shares)				374,000
Granted (in dollars per share)				$ 12.76
Vested (in shares)				(500,000)
Vested (in dollars per share)				$ 9.82
Cancelled or forfeited (in shares)				0
Cancelled or forfeited (in dollars per share)				$ 0
Balance (in shares)	1,190,000	1,316,000		1,190,000
Balance (in dollars per share)	$ 13.74	$ 12.53		$ 13.74
Expected to vest at June 29, 2013 (in shares)	681,000			681,000
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2014	0			0
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2015	0			0
Number of RSUs with performance-based vesting criteria expected to vest on January 1, 2016	222,000			222,000
Outstanding:
Balance (in shares)				97,000
Granted (in shares)				10,000
Granted (in dollars per share)				$ 10.75
Redeemed for common stock				0
Balance (in shares)	107,000	97,000		107,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	6		20	18	47
Unrecognized Compensation Cost	0			0
Weighted Average Remaining Amortization Periods				0 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	(2,646)		1,133	(1,718)	2,268
Unrecognized Compensation Cost	12,814			12,814
Weighted Average Remaining Amortization Periods				1 year 7 months 6 days
Phantom Stock Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	0		0	108	93
Unrecognized Compensation Cost	$ 0			$ 0
Weighted Average Remaining Amortization Periods				0 years
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