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Supplemental Cash Flows (Tables)

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental disclosures of cash flow information are as follows for the years ended December 31:

(in thousands)		2014				2013				2012
Cash paid during the period for:
Income taxes		$	17,403			$	18,115			$	16,926
Interest expense			577				571				670
Noncash investing activities:
Acquisition of property and equipment for which payment is pending			749				804				390

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Tabular disclosure of supplemental cash flow information for the periods presented.

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