CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities--
Net earnings	$ 153,928	$ 120,697	$ 95,473
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	43,164	26,903	19,708
Non-cash share-based compensation	11,862	11,984	18,133
Deferred taxes	(2,975)	(83)	5,421
Unrealized loss/(gain) on derivative financial instruments	(20)	25	4
Changes in assets and liabilities, net of acquisitions
Accounts receivable, net	(17,524)	(3,880)	(18,990)
Inventories, net	(19,819)	(19,026)	(2,287)
Prepaid expenses and other assets	(7,768)	(7,198)	2,455
Accounts payable	(9,248)	2,684	(2,581)
Accrued expenses and other liabilities	(5,442)	(3,760)	13,057
Net cash provided by operating activities	146,158	128,346	130,393
Cash flows from investing activities--
Additions to property and equipment	(14,640)	(7,652)	(7,840)
Acquisition of Giga	0	0	(1,603)
Acquisition of Cozzini, net of cash acquired	0	0	(2,000)
Acquisition of Beech, net of cash acquired	0	0	(12,959)
Acquisition of Lincat, net of cash acquired	0	0	(82,130)
Acquisition of Maurer	0	0	(3,264)
Acquisition of Auto-Bake, net of cash acquired	0	0	(22,524)
Acquisition of Armor Inox, net of cash acquired	0	0	(28,658)
Acquisition of Nieco, net of cash acquired	0	(23,860)	0
Net cash (used in) investing activities	(474,190)	(69,895)	(188,910)
Cash flows from financing activities--
Net proceeds under current revolving credit facilities	312,100	256,500	0
Net (repayments) proceeds under previous revolving credit facilities	0	(309,400)	102,150
Net (repayments) proceeds under foreign bank loan	(632)	(4,771)	862
Repayments of Notes Payable	(32)	350	0
Repurchase of treasury stock	(4,391)	(20,670)	(15,663)
Debt issuance costs	0	(5,862)	(373)
Excess tax benefit related to share-based compensation	19,315	16,108	4,389
Net proceeds from stock issuances	3,842	2,804	224
Net cash (used in) provided by financing activities	330,202	(64,941)	91,589
Effect of exchange rates on cash and cash equivalents	358	640	(512)
Changes in cash and cash equivalents--
Net (decrease) increase in cash and cash equivalents	2,528	(5,850)	32,560
Cash and cash equivalents at beginning of year	34,366		40,216
Cash and cash equivalents at end of quarter	36,894	34,366
Non-cash investing and financing activities:
Proceeds from Sale of Property Held-for-sale	7,000	0	0
Payments to Acquire Intangible Assets	(5,000)	0	0
Cooktek L L C [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	(817)	(335)	(86)
Danfotech Inc [Member]
Cash flows from investing activities--
Acquisition of Danfotech, net of cash acquired	0	361	(6,111)
Fr Drake Companys [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	0	(403)	(21,735)
Baker [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	0	(10,250)	0
Stewart [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	1,303	(27,756)	0
Viking Range Corporation [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	(361,731)	0	0
Distributors [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	(14,916)	0	0
Celfrost [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	(11,246)	0	0
Wunder-Bar [Member]
Cash flows from investing activities--
Payments for (Proceeds from) Previous Acquisition	$ (74,143)	$ 0	$ 0