CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 30, 2012
CASH PROVIDED BY OPERATING ACTIVITIES:
Net earnings	$ 51,636	$ 48,139
Income items not affecting cash:
Depreciation and amortization	14,871	15,207
Deferred income taxes	44	10
Stock-based compensation arrangements	5,696	5,535
Other non-cash items, net	2,374	(5,406)
Changes in operating assets and liabilities:
Decrease in accounts receivable	27,310	28,918
Increase in inventories	(9,704)	(11,450)
Increase in prepaid expenses and other current assets	(1,234)	(505)
Increase in other assets	(2,988)	(167)
Decrease in accounts payable	(9,636)	(7,912)
(Decrease) increase in deferred revenue	(169)	2,095
Decrease in accrued payroll and other liabilities	(1,029)	(18,534)
Decrease in accrued income taxes	(16,130)	(10,350)
Increase in pension and other long-term liabilities	918	3,415
Cash provided by operating activities	61,959	48,995
CASH USED BY INVESTING ACTIVITIES:
Additions to property and equipment, net	(12,648)	(12,935)
Cash used by investing activities	(12,648)	(12,935)
CASH USED BY FINANCING ACTIVITIES:
Repurchase of common stock	(108,361)	(25,389)
Dividends paid	(13,106)	(10,784)
Proceeds from shares issued pursuant to stock-based compensation plans	1,179	876
Excess tax benefit of stock options exercised	234	338
Other financing activities	(22)	(44)
Cash used by financing activities	(120,076)	(35,003)
Effect of exchange rate changes on cash	(4,967)	6,263
Net (decrease) increase in cash and cash equivalents	(75,732)	7,320
Cash and cash equivalents, beginning of period	321,739	440,846
Cash and cash equivalents, end of period	$ 246,007