CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013		Dec. 29, 2012		Dec. 31, 2011
Net sales	$ 1,428,685		$ 1,038,174		$ 855,907
Cost of sales	878,674		635,185		511,770
Gross profit	550,011		402,989		344,137
Selling and distribution expenses	155,639		106,129		91,113
General and administrative expenses	149,910		108,776		104,314
Income from operations	244,462	[1]	188,084	[1]	148,710	[1]
Net interest expense and deferred financing amortization, net	15,901		9,238		8,503
Other expense (income), net	2,780		4,406		(241)
Earnings before income taxes	225,781		174,440		140,448
Provision for income taxes	71,853		53,743		44,975
Net earnings	$ 153,928		$ 120,697		$ 95,473
Net earnings per share:
Basic (in usd per share)	$ 8.27	[2]	$ 6.61	[2]	$ 5.30
Diluted (in usd per share)	$ 8.21	[2]	$ 6.49	[2]	$ 5.15
Weighted average number of shares
Basic (in shares)	18,610		18,265		17,998
Dilutive common stock equivalents (in shares)	145		329		536
Diluted (in shares)	18,755		18,594		18,534

[1] Non-operating expenses are not allocated to the reportable segments. Non-operating expenses consist of interest expense and deferred financing amortization, foreign exchange gains and losses and other income and expense items outside of income from operations.

[2] Sum of quarters may not equal the total for the year due to changes in the number of shares outstanding during the year.