Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010
Cash flows from operating activities
Net earnings	$ 37,591	$ 33,260
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	6,361	5,641
Loss on sale of property and equipment	44	87
Equity-based compensation expense	7,739	7,107
Excess tax benefits from equity-based payment arrangements	(48)	(792)
Deferred income taxes	(1,473)	(1,221)
Inventory valuation	888	989
Changes in operating assets and liabilities:
Inventories	(3,552)	(5,040)
Prepaid expenses and other assets	6,063	30
Accounts payable	2,614	41
Other liabilities	(2,759)	6,137
Total adjustments	15,877	12,979
Net cash provided by operating activities	53,468	46,239
Cash flows from investing activities
Acquisition, net of cash acquired		(42,694)
Proceeds from sale of property and equipment	1	32
Purchases of property and equipment	(8,558)	(3,676)
Net cash used in investing activities	(8,557)	(46,338)
Cash flows from financing activities
Proceeds from equity awards exercised	39	4,640
Excess tax benefits from equity-based payment arrangements	48	792
Repurchase of common stock	(32,701)	(8,630)
Borrowings on line of credit		23,350
Payments on line of credit		(11,350)
Net cash used in financing activities	(32,614)	8,802
Effect of exchange rate changes on cash and cash equivalents	(202)	567
Net increase in cash and cash equivalents	12,095	9,270
Cash and cash equivalents, beginning of period	24,222	13,658
Cash and cash equivalents, end of period	36,317	22,928
Supplemental disclosures of cash flow information
Interest	10	62
Income taxes	19,281	18,582
Non-cash financing activities
Common stock issued in connection with acquisition		$ 17,716