Fair Values of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table provides a summary of the company’s assets and liabilities that are measured on a recurring basis (in thousands).

				Basis for Fair Value Measurements at Reporting Date
				Quoted Prices in Active Markets for Identical Assets / (Liabilities)	Significant Other Observable Inputs			Significant Other Unobservable Inputs
	Total			Level I	Level II			Level III
December 31, 2011:
Forward Exchange Contracts—net	$	1,180		—	$	1,180		—
Interest Rate Swap Agreements—net	$	(370	)		$	(370	)
December 31, 2010:
Forward Exchange Contracts—net	955			—	955			—

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying amounts and fair values of the company’s financial instruments at December 31, 2011 and 2010 are as follows (in thousands):

	2011						2010
	Carrying Value			Fair Value			Carrying Value			Fair Value
Cash and cash equivalents	$	34,924		$	34,924		$	48,462		$	48,462
Other investments	1,362			1,362			1,588			1,588
Installment receivables, net of reserves	7,477			7,477			5,672			5,672
Long-term debt (including current maturities of long-term debt)	(265,484		)	(264,112		)	(246,064		)	(264,382		)
Forward contracts in Other Current Assets	1,685			1,685			2,884			2,884
Forward contracts in Accrued Expenses	(505		)	(505		)	(1,929		)	(1,929		)
Interest Rate Swap Agreements in Other Current Assets	18			18			—			—
Interest Rate Swap Agreements in Accrued Expenses	(388		)	(388		)	—			—