CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Cash flows from operating activities--
Net earnings	$ 193,312us-gaap_NetIncomeLoss	$ 153,928us-gaap_NetIncomeLoss	$ 120,697us-gaap_NetIncomeLoss
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	41,252	43,164	26,903
Non-cash share-based compensation	16,690us-gaap_ShareBasedCompensation	11,862us-gaap_ShareBasedCompensation	11,984us-gaap_ShareBasedCompensation
Deferred taxes	15,341us-gaap_DeferredIncomeTaxExpenseBenefit	(2,975)us-gaap_DeferredIncomeTaxExpenseBenefit	(83)us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in assets and liabilities, net of acquisitions
Accounts receivable, net	(20,577)	(17,524)	(3,880)
Inventories, net	(2,064)us-gaap_IncreaseDecreaseInInventories	(19,819)us-gaap_IncreaseDecreaseInInventories	(19,026)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	(384)	(7,768)	(7,198)
Accounts payable	(7,872)	(9,248)	2,684
Accrued expenses and other liabilities	(1,816)	(5,462)	(3,735)
Net cash provided by operating activities	233,882	146,158	128,346
Cash flows from investing activities--
Additions to property and equipment	(13,143)	(14,640)	(7,652)
Proceeds from Sale of Property Held-for-sale	0	7,000	0
Payments to Acquire Intangible Assets	0	(5,000)	0
Net cash (used in) investing activities	(233,058)	(474,190)	(69,895)
Cash flows from financing activities--
Net proceeds under current revolving credit facilities	18,900	312,100	256,500
Net (repayments) proceeds under previous revolving credit facilities	0	0	(309,400)
Net (repayments) proceeds under foreign bank loan	8,815	(632)	(4,771)
Repayments of Notes Payable	(35)	(32)	350
Repurchase of treasury stock	(44,283)	(4,391)	(20,670)
Debt issuance costs	0us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts	(5,862)us-gaap_PaymentsOfDebtIssuanceCosts
Excess tax benefit related to share-based compensation	25,490	19,315	16,108
Net proceeds from stock issuances	0	3,842	2,804
Net cash (used in) provided by financing activities	8,887	330,202	(64,941)
Effect of exchange rates on cash and cash equivalents	(2,660)	358	640
Changes in cash and cash equivalents--
Net (decrease) increase in cash and cash equivalents	7,051	2,528	(5,850)
Cash and cash equivalents at beginning of year	36,894	34,366	40,216
Cash and cash equivalents at end of quarter	43,945	36,894	34,366
ULine [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	142,033	0	0
Cooktek L L C [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	0	817	335
Danfotech Inc [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	0	0	361
Fr Drake Companys [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	0	0	403
Baker [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	0	0	10,250
Stewart [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	0	(1,303)	27,756
Nieco [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	0	0	(23,860)
Viking Range Corporation [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	0	361,731	0
Distributors [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	0	14,916	0
Celfrost [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	356	11,246	0
Wunder-Bar [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	(1,285)	(74,143)	0
Market Forge Industries, Inc [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	10,240	0	0
Distributors 2014 [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	38,485	0	0
PES [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Gross	15,000	0	0
Concordia [Member]
Cash flows from investing activities--
Payments to Acquire Businesses, Net of Cash Acquired	$ 12,516	$ 0	$ 0

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The cash inflow from the additional capital contribution to the entity.

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-Glossary Financing Activities

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Amount of cash inflow (outflow) from long-term debt supported by a written promise to pay an obligation.

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The net cash inflow or outflow in other borrowings not otherwise defined in the taxonomy.

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The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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