Share-Based Compensation Performance Shares (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2014		Dec. 29, 2013	Dec. 30, 2012
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Weighted average grant date fair value, dividend equivalent units issued	$ 0.00	[1]
Performance Shares [Member]
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Total fair value, vested in period				0
Performance Condition Award [Member]
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Non-vested, beginning of period	531
Granted	454			0
Dividend equivalent units issued	22	[1]
Vested	(11)
Forfeited	(63)
Non-vested, end of period	933		531
Weighted average grant date fair value, non-vested, beginning of period	$ 7.92
Weighted average grant date fair value, granted	$ 9.74
Weighted average grant date fair value, dividend equivalent units issued	$ 0.00	[1]
Weighted average grant date fair value, vested	$ 7.92
Weighted average grant date fair value, forfeited	$ 8.31
Weighted average grant date fair value, non-vested, end of period	$ 8.81		$ 7.92
Total fair value, vested in period	104		1,767
Market Condition Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate				0.41%
Expected life in years				2 years 11 months 26 days
Expected volatility				34.00%
Expected dividend yield				0.00%	[2]
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Non-vested, beginning of period	1,522
Granted	0		0
Dividend equivalent units issued	23	[1]
Vested	(706)	[3]
Forfeited	(171)
Non-vested, end of period	668		1,522
Weighted average grant date fair value, non-vested, beginning of period	$ 6.52
Weighted average grant date fair value, granted	$ 0.00
Weighted average grant date fair value, dividend equivalent units issued	$ 0.00	[1]
Weighted average grant date fair value, vested	$ 6.96
Weighted average grant date fair value, forfeited	$ 6.53
Weighted average grant date fair value, non-vested, end of period	$ 6.04		$ 6.52
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Incremental Above Target	54
Total fair value, vested in period	$ 6,382		$ 289
Minimum [Member]
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Performance Shares Vesting Range, Percentage of Target	0.00%
Maximum [Member]
Share-based Compensation, Performance Shares, Nonvested, Number of Shares [Roll Forward]
Performance Shares Vesting Range, Percentage of Target	200.00%

[1] Dividend equivalent units are issued in lieu of cash dividends for non-vested performance shares. There is no weighted average fair value associated with dividend equivalent units.

[2] The Monte Carlo method assumes a reinvestment of dividends.

[3] Excludes the vesting of an additional 54 shares, which resulted from the performance of market condition awards exceeding Target.