Commitments, Contingencies and Legal Matters (Tables)

3 Months Ended

Mar. 31, 2013

Commitments And Contingencies Disclosure [Abstract]

Summary of Changes in Product Warranties

The following table sets forth a summary of changes in product warranties:

	Accrued Warranties
	(In thousands)
Balance as of December 31, 2012	$	5,426
Accruals for warranties issued during the period		107
Adjustments to pre-existing accruals (including changes in estimates)		395
Settlements made during the period (in cash or in kind)		(295	)
Balance as of March 31, 2013	$	5,633