Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES
Net Earnings	$ 33,110	$ 29,930
Adjustments to reconcile Net Earnings to Net Cash Provided by Operating Activities:
Depreciation	13,186	13,178
Amortization	1,812	1,914
Deferred Income Taxes	3,136	(4)
Share-Based Compensation Expense	5,261	5,106
Allowance for Doubtful Accounts and Returns	1,248	1,153
Other, Net	(45)	155
Changes in Operating Assets and Liabilities:
Receivables	(6,077)	(6,551)
Inventories	(21,720)	(11,798)
Accounts Payable	5,879	2,826
Employee Compensation and Benefits	1,755	(2,620)
Other Current Liabilities	216	1,716
Income Taxes	137	940
Other Assets and Liabilities	(1,073)	863
Net Cash Provided by Operating Activities	36,825	36,808
INVESTING ACTIVITIES
Purchases of Property, Plant and Equipment	(13,476)	(11,380)
Proceeds from Disposals of Property, Plant and Equipment	235	97
Acquisition of Business, Net of Cash Acquired	0	(750)
Proceeds from Sale of Business	1,418	3,520
Increase in Restricted Cash	(12)	(224)
Net Cash Used for Investing Activities	(11,835)	(8,737)
FINANCING ACTIVITIES
Payments of Short-Term Debt	(1,500)	0
Short-Term Debt Borrowings	0	1,500
Payment of Long-Term Debt	(2,015)	(938)
Purchases of Common Stock	(13,609)	(16,626)
Proceeds from Issuance of Common Stock	1,650	5,994
Excess Tax Benefit on Stock Plans	1,620	2,944
Dividends Paid	(10,854)	(9,918)
Net Cash Used for Financing Activities	(24,708)	(17,044)
Effect of Exchange Rate on Cash and Cash Equivalents	(1,482)	342
Net Increase (Decrease) in Cash and Cash Equivalents	(1,200)	11,369
Cash and Cash Equivalents at Beginning of Period	80,984	53,940
Cash and Cash Equivalents at End of Period	79,784	65,309
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Income Taxes	8,274	8,093
Cash Paid for Interest	1,107	1,189
Supplemental Non-cash Investing and Financing Activities:
Capital Expenditures in Accounts Payable	$ 1,001	$ 873