Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
OPERATING ACTIVITIES:
Net income	$ 17,889	$ 21,578
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	6,481	5,995
Amortization of intangibles	1,468	1,595
Stock-based compensation	1,365	1,182
Non-cash inventory charge	205	3,678
Excess tax benefit on share-based compensation	(475)	(975)
Loss (gain) on sale of assets	7	(167)
Changes in operating assets and liabilities:
Accounts receivable	(14,017)	(11,279)
Inventories	(1,713)	675
Accounts payable	8,552	3,904
Accrued expenses (including post-retirement)	(5,543)	(557)
Accrued payroll and severance	(7,728)	(10,124)
Accrued taxes	1,474	771
Prepaid expenses and other	(101)	(2,559)
Net cash provided by operating activities	7,864	13,717
INVESTING ACTIVITIES:
Purchases of property, plant, and equipment	(3,244)	(4,614)
Purchase of short-term investments	(4,616)
Proceeds from sale of assets	21	167
Net cash used in investing activities	(7,839)	(4,447)
FINANCING ACTIVITIES:
Proceeds from debt	17,000	15,000
Payments of term debt		(2,000)
Payments of revolving credit facility	(5,500)	(12,000)
Cash dividends paid	(3,888)	(3,284)
Proceeds from exercise of stock options	4,217	9,998
Excess tax benefit on share-based compensation	475	975
Net cash provided by financing activities	12,304	8,689
Effect of exchange rate changes on cash and cash equivalents	2,347	3,854
Increase in cash and cash equivalents	14,676	21,813
Cash and cash equivalents at beginning of period	164,016	109,720
Cash and cash equivalents at end of period	$ 178,692	$ 131,533