Stock Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended		12 Months Ended																						4 Months Ended	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 Return On Invested Capital	Dec. 29, 2012 Return On Invested Capital Range One	Dec. 29, 2012 Return On Invested Capital Range Two	Dec. 29, 2012 Return On Invested Capital Range Three	Dec. 29, 2012 TSR Rank Less Than 50th Percentile Of S&P TSR	Dec. 29, 2012 TSR Rank Greater Than 50th Percentile Of S&P TSR	Dec. 29, 2012 Minimum	Dec. 29, 2012 Maximum	Dec. 29, 2012 Weighted Average Cost of Capital	Dec. 29, 2012 Weighted Average Cost of Capital Range One	Dec. 29, 2012 Weighted Average Cost of Capital Range Two	Dec. 29, 2012 Weighted Average Cost of Capital Range Three	Dec. 29, 2012 Performance Contingent Restricted Stock	Dec. 31, 2011 Performance Contingent Restricted Stock	Jan. 01, 2011 Performance Contingent Restricted Stock	Dec. 29, 2012 Performance Contingent Restricted Stock TSR Rank Less Than 50th Percentile Of S&P TSR	Dec. 29, 2012 Stock Appreciation Rights	Dec. 31, 2011 Stock Appreciation Rights	Dec. 29, 2012 Stock Appreciation Rights Minimum	Dec. 29, 2012 Stock Appreciation Rights Maximum	Dec. 29, 2012 Total share holder return	Dec. 29, 2012 Total share holder return TSR Rank Less Than 50th Percentile Of S&P TSR	Apr. 21, 2012 Deferred Stock	Dec. 29, 2012 Deferred Stock	Dec. 29, 2012 Deferred Stock Non Employee Directors	Dec. 29, 2012 Deferred Stock Minimum	Dec. 29, 2012 Deferred Stock Retainer Conversion	Dec. 29, 2012 Deferred Stock Annual Grant Awards	Dec. 29, 2012 Deferred Stock Activity	Dec. 31, 2011 Deferred Stock Activity	Jan. 01, 2011 Deferred Stock Activity	Dec. 29, 2012 Total Shareholders Return	Dec. 29, 2012 Performance Contingent Return On Invested Capital Shares	Dec. 29, 2012 Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of shares that may be issued or transferred under EPIP	27,937,500
Options outstanding average exercise price																																				$ 16.08
Weighted average remaining contractual life																																				3 years 9 months
Aggregate intrinsic value																																				$ 43,600,000
Unrecognized compensation cost related to nonvested restricted stock granted by the EPIP	2,200,000														4,600,000																600,000				2,100,000	2,000,000
Expected weighted-average period to recognize compensation cost (years)	1 year 18 days																						11 months 27 days								6 months 29 days				1 year 18 days	1 year 15 days
Share-based payment award, fair value assumptions, method used																																		Inputs into the model included the following for the company and comparator companies (i) total stockholder return from the beginning of the performance cycle through the measurement date; (ii) volatility; (iii) risk-free interest rates; and (iv) the correlation of the comparator companies' total stockholder return. The inputs are based on historical capital market data.
Vesting period	1 year 6 months														2 years				1 year							1 year	1 year	2 years							1 year 6 months
Return on investment target over the two fiscal years immediately preceding the vesting date									1.75%	4.75%					3.75%
Percentage of shares that can be earned									0.00%	125.00%
Percentage of payout			0.00%								1.75%
Percentage of payout, ROIC above WACC				1.75%	3.75%	4.75%						50.00%	100.00%	125.00%
Grant date fair value award															$ 22.37	$ 15.93	$ 17.59														$ 20.62	$ 19.35	$ 15.41		$ 21.56
Percentage of ROI target	100.00%
Number of shares vested to plan participants															214,000	242,000	378,000	213,271	57,000	161,000											77,000	70,000	71,000
Maximum percentage of change in grant							20.00%	20.00%
Reduction in grant, percentage																								16.90%
Reduction in grant, common shares																								43,490
Percentage of change in grant							(1.30%)	1.30%
Maximum percentage of award, declared as dividends															100.00%
Dividends paid on vested performance-contingent restricted stock awards	255,000														200,000
Total fair value of shares vested															4,100,000																1,800,000
Tax shortfall on vesting (issuance) of performance-contingent awards															200,000
Deferred shares exercised																													20,205	25,200	45,000	85,000	51,000
Aggregate shares converted																									18,330		47,800
Tax windfall on the exercise of deferred share awards																															100,000
Exercisable period																			9 years
Other long-term liabilities	48,891,000	52,567,000																	1,700,000	2,300,000
Payments on rights exercised																			$ 1,300,000
Fair value of rights																					$ 10.36	$ 15.86
Dividend yield																			2.90%
Expected volatility																			29.00%
Risk-free interest																			0.27%
Expected life																					6 months	1 year 8 months 12 days