CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 72,814,000	$ 103,936,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	16,776,000	13,781,000
Undistributed loss (earnings) of joint venture	263,000	(627,000)
Gain on liquidation of subsidiary		(16,879,000)
Stock compensation	10,693,000	9,442,000
Foreign exchange gain	(1,643,000)	(1,208,000)
Net loss on disposal of property and equipment	416,000	1,425,000
Deferred income taxes	(711,000)	(237,000)
Changes in operating assets and liabilities:
Accounts receivable, net	(14,222,000)	34,475,000
Inventories	(27,640,000)	(2,426,000)
Prepaid expenses and other current assets	(954,000)	2,610,000
Accounts payable	7,437,000	(80,005,000)
Income tax payable	22,111,000	(85,836,000)
Other accrued expenses	9,748,000	2,849,000
Other liabilities	16,049,000	9,501,000
Net cash provided by (used in) operating activities	111,137,000	(9,199,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed-income securities	(35,440,000)
Acquisition of property and equipment	(24,034,000)	(26,834,000)
Other assets	489,000	(44,000)
Net cash used in investing activities	(58,985,000)	(26,878,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from borrowings on bank credit facility	15,000,000
Repayments of borrowings on bank credit facility	(15,000,000)
Repayments of borrowings on long-term debt		(108,000)
Payments of debt issuance costs		(1,986,000)
Repurchases of common stock	(4,829,000)	(5,213,000)
Issuance of common stock	755,000	509,000
Cash paid to satisfy nonvested share related employee tax withholding obligations	(1,001,000)	(1,393,000)
Dividends paid		(1,772,000)
Net cash used in financing activities	(5,075,000)	(9,963,000)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(18,000)	839,000
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	47,059,000	(45,201,000)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	204,881,000	227,907,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	251,940,000	182,706,000
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest	409,000	2,046,000
Cash paid for income taxes, net of refunds	23,751,000	133,221,000
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Equity in earnings (loss) of joint venture	(263,000)	627,000
Additional property and equipment purchased but not yet paid	$ 1,700,000	$ 5,600,000