Quarterly Financial Data (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 28, 2013		Sep. 28, 2013		Jun. 29, 2013		Mar. 30, 2013		Dec. 29, 2012		Sep. 29, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Quarterly Financial Information [Line Items]
Revenue	$ 691,975		$ 675,535		$ 674,390		$ 622,880		$ 685,093		$ 711,467		$ 730,160		$ 644,079		$ 2,664,780	$ 2,770,799	$ 2,628,374
Operating income	39,741		46,614		48,427		41,808		47,800		53,056		57,247		42,636		176,590	200,739	180,827
Income from continuing operations before income taxes	38,897		45,758		47,656		41,068		47,002		52,238		56,477		41,912		173,379	197,629	177,718
Income taxes	13,721		17,255		18,164		15,317		14,146		19,977		21,577		15,363		64,457	71,063	66,175
Income from continuing operations	25,176		28,503		29,492		25,751		32,856		32,261		34,900		26,549		108,922	126,566	111,543
Income from discontinued operations, net of income taxes	34,381		743		934		1,029		1,122		840		955		298		37,087	3,215	1,464
Net income	$ 59,557		$ 29,246		$ 30,426		$ 26,780		$ 33,978		$ 33,101		$ 35,855		$ 26,847		$ 146,009	$ 129,781	$ 113,007
Earnings per common share :
Income from continuing operations	$ 0.55	[1]	$ 0.62	[1]	$ 0.64	[1]	$ 0.55	[1]	$ 0.71	[1]	$ 0.69	[1]	$ 0.74	[1]	$ 0.57	[1]	$ 2.37	$ 2.71	$ 2.35
Income from discontinued operations	$ 0.75	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.01	[1]	$ 0.81	$ 0.07	$ 0.03
Earnings per common share	$ 1.30	[1]	$ 0.64	[1]	$ 0.66	[1]	$ 0.58	[1]	$ 0.73	[1]	$ 0.71	[1]	$ 0.76	[1]	$ 0.57	[1]	$ 3.17	$ 2.78	$ 2.38
Diluted earnings per share:
Income from continuing operations	$ 0.55	[1]	$ 0.62	[1]	$ 0.64	[1]	$ 0.55	[1]	$ 0.70	[1]	$ 0.69	[1]	$ 0.74	[1]	$ 0.56	[1]	$ 2.36	$ 2.70	$ 2.35
Income from discontinued operations	$ 0.75	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.01	[1]	$ 0.80	$ 0.07	$ 0.03
Diluted earnings per share	$ 1.30	[1]	$ 0.64	[1]	$ 0.66	[1]	$ 0.57	[1]	$ 0.73	[1]	$ 0.71	[1]	$ 0.76	[1]	$ 0.57	[1]	$ 3.16	$ 2.77	$ 2.38
Dividends per common share	$ 0.35																$ 0.35	$ 0.73	$ 0.21
Dividends paid per common share									$ 0.560		$ 0.060		$ 0.055		$ 0.055			$ 0.73	$ 0.21

[1] Due to the changes in the number of average common shares and common stock equivalents outstanding during the year, the sum of earnings per share amounts for each quarter do not necessarily sum in the aggregate to the earnings per share amounts for the full year.