Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Changes in the Liability for Product Warranty Claim Costs

Changes in the liability for product warranty claims costs were as follows:

(In thousands)	Six Months Ended June 30,
	2021		2020
Balance at beginning of period	$	1,721	$	1,514
Accruals for warranties issued during the period	46		578
Settlements (in cash or in kind) during the period	(386)		(312)
Foreign currency translation gain (loss)	(30)		2
Balance at end of period	$	1,351	$	1,782