Accounts Receivable Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2014

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable consist of the following at December 31, 2014 and 2013:

(in thousands)	2014			2013
Trade receivables	$	118,531		$	115,876
Allowance for doubtful accounts	(2,101		)	(2,707		)
Allowance for sales returns and discounts	(1,982		)	(1,884		)
	$	114,448		$	111,285

Allowance for Credit Losses on Financing Receivables [Table Text Block]

The following table shows the changes in our allowance for doubtful accounts:

(in thousands)	2014			2013			2012
Balance at January 1	$	2,707		$	3,095		$	2,669
Additions charged to expense	523			1,051			2,333
Deductions (write-offs)	(1,129		)	(1,439		)	(1,907		)
Balance at December 31	$	2,101		$	2,707		$	3,095