Additional Financial Information Disclosures (Tables)

3 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Changes in warranty and after-sale costs reserve

Changes in the Company's warranty and after-sale costs reserve are as follows:

	Three months ended
	March 31,
(In thousands)	2013			2012
Balance at beginning of period	$	881		$	1,593
Net additions charged to earnings	200			179
Costs incurred	(364		)	(366		)
Balance at end of period	$	717		$	1,406