CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATING ACTIVITIES
Net Earnings	$ 18,995	$ 11,721
Adjustments to reconcile Net Earnings to Net Cash Used for Operating Activities:
Depreciation	8,937	8,664
Amortization	1,432	1,704
Impairment of Intangibles	0	1,805
Deferred Income Taxes	(1,271)	3,249
Stock-Based Compensation Expense	3,911	2,490
Allowance for Doubtful Accounts and Returns	1,148	642
Other, Net	19	385
Changes in Operating Assets and Liabilities
Accounts Receivable	(7,538)	(12,593)
Inventories	(7,278)	(10,273)
Accounts Payable	3,978	14,515
Employee Compensation and Benefits	(8,438)	(6,105)
Other Current Liabilities	(1,714)	(538)
Income Taxes	855	116
Other Assets and Liabilities	(493)	(3,072)
Net Cash Provided by Operating Activities	12,543	12,710
INVESTING ACTIVITIES
Purchases of Property, Plant and Equipment	7,482	4,023
Proceeds from Disposals of Property, Plant and Equipment	534	255
Acquisition of Businesses, Net of Cash Acquired	750	2,916
Decrease in Restricted Cash	1,691	0
Net Cash Used for Investing Activities	6,007	6,684
FINANCING ACTIVITIES
Change in Short-Term Borrowings, Net	0	(35)
Payment of Long-Term Debt	1,764	12,268
Issuance of Long-Term Debt	0	20,000
Purchases of Common Stock	15,281	9,159
Proceeds from Issuance of Common Stock	1,952	1,782
Tax Benefit on Stock Plans	1,076	739
Dividends Paid	6,358	6,471
Net Cash Used for Financing Activities	20,375	5,412
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(68)	1,308
Net (Decrease) Increase in Cash and Cash Equivalents	(13,907)	1,922
Cash and Cash Equivalents at Beginning of Period	52,339	39,529
Cash and Cash Equivalents at End of Period	38,432	41,451
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Income Taxes	5,394	3,870
Cash Paid for Interest	1,314	815
Supplemental Non-cash Investing and Financing Activities:
Capital Expenditures Funded Through Capital Leases	698	1,289
Collateralized Borrowings	68	274
Notes Payable Related to Water Star, Inc. Acquisition	$ 750	$ 1,500