CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
OPERATING ACTIVITIES
Net Earnings	$ 27,740	$ 21,449
Adjustments to reconcile Net Earnings to Net Cash Used for Operating Activities:
Depreciation	13,239	12,800
Amortization	2,096	2,533
Impairment of Intangibles	0	1,805
Deferred Income Taxes	(731)	945
Stock-Based Compensation Expense	7,175	3,569
Allowance for Doubtful Accounts and Returns	1,528	747
Gain on Sale of Business	(784)	0
Other, Net	130	400
Changes in Operating Assets and Liabilities
Accounts Receivable	1,756	(2,672)
Inventories	(3,097)	(17,461)
Accounts Payable	(2,348)	11,277
Employee Compensation and Benefits	(2,767)	134
Other Current Liabilities	(84)	2,433
Income Taxes	4,902	1,628
Other Assets and Liabilities	(5,473)	(3,568)
Net Cash Provided by Operating Activities	43,282	36,019
INVESTING ACTIVITIES
Purchases of Property, Plant and Equipment	(11,110)	(7,663)
Proceeds from Disposals of Property, Plant and Equipment	280	485
Acquisition of Businesses, Net of Cash Acquired	(750)	(2,916)
Proceeds from the Sale of Business	(1,014)	0
Decrease in Restricted Cash	3,089	0
Net Cash Used for Investing Activities	(7,477)	(10,094)
FINANCING ACTIVITIES
Change in Short-Term Borrowings, Net	0	(35)
Payment of Long-Term Debt	(2,450)	(18,099)
Issuance of Long-Term Debt	0	20,000
Purchases of Common Stock	(18,567)	(17,134)
Proceeds from Issuance of Common Stock	2,798	3,257
Tax Benefit on Stock Plans	1,213	801
Dividends Paid	(9,508)	(9,660)
Net Cash Used for Financing Activities	(26,514)	(20,870)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	1,069	(311)
Net (Decrease) Increase in Cash and Cash Equivalents	10,360	4,744
Cash and Cash Equivalents at Beginning of Period	52,339	39,529
Cash and Cash Equivalents at End of Period	62,699	44,273
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Income Taxes	10,319	8,110
Cash Paid for Interest	1,905	1,450
Supplemental Non-cash Investing and Financing Activities:
Capital Expenditures Funded Through Capital Leases	847	2,621
Collateralized Borrowings	60	194
Notes Payable Related to Water Star, Inc. Acquisition	$ 750	$ 1,500