Subsequent Event (Tables)

12 Months Ended

Dec. 29, 2012

Business Acquisition [Line Items]

Schedule of Business Acquisition Pro Forma Information

The following pro forma results include adjustments to reflect additional interest expense to fund the acquisition, amortization of intangibles associated with the acquisition, and the effects of adjustments made to the carrying value of certain assets (in thousands, except per share data:

	December 29, 2012		December 31, 2011
Net sales	$	1,074,910	$	1,001,467
Net earnings	124,167		102,304
Net earnings per share:
Basic	6.80		5.68
Diluted	6.68		5.52

Viking [Member]

Business Acquisition [Line Items]

Schedule of Business Acquisition Pro Forma Information

Preliminary pro forma results of operations for the nine months ended September 29, 2012 and the full year ended December 31, 2011 for the Viking acquisition assumes the acquisition was completed on January 1, 2011 are as follows:

	September 29, 2012	December 31, 2011
Net sales	920,232	1,075,278
Net earnings	70,217	79,665
Net earnings per share	3.79	4.30
Basic	18,237	17,998
Diluted	18,539	18,534