Basis of Presentation and Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Changes in Allowance for Doubtful Accounts

Changes in the Company's allowance for doubtful accounts are as follows:

	Balance at beginning of year		Provision and reserve adjustments			Write-offs less recoveries			Balance at end of year
	(In thousands)
2021	$	552	$	191		$	(46	)	$	697
2020		224		356			(28	)		552
2019		360		(132	)		(4	)		224

Schedule of Changes to Obsolete and Excess Inventories Reserve

Changes to the Company's obsolete and excess inventories reserve are as follows:

	Balance at beginning of year		Net additions charged to earnings		Disposals			Balance at end of year
	(In thousands)
2021	$	6,400	$	1,329	$	(1,651	)	$	6,078
2020		5,440		2,964		(2,004	)		6,400
2019		4,131		2,663		(1,354	)		5,440

Schedule of Carrying Value and Accumulated Amortization of Intangible Assets

The carrying value and accumulated amortization by major class of intangible assets are as follows:

	December 31, 2021				December 31, 2020
	Gross carrying amount		Accumulated amortization		Gross carrying amount		Accumulated amortization
	(In thousands)
Technologies	$	58,789	$	34,254	$	52,536	$	30,598
Intellectual property		10,169		2,744		10,000		1,833
Non-compete agreements		748		506		931		413
Licenses		650		543		650		526
Customer lists		8,083		4,501		8,023		3,846
Customer relationships		39,202		19,663		28,630		16,146
Trade names		16,050		7,304		12,136		5,946
Total intangibles	$	133,691	$	69,515	$	112,906	$	59,308

Schedule of Changes in Warranty and After-Sale Costs Reserve

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

	Balance at beginning of year		Provision of acquired business		Net additions charged to earnings		Costs incurred			Balance at end of year
	(In thousands)
2021	$	11,617	$	—	$	5,856	$	(4,605	)	$	12,868
2020		5,583		500		7,855		(2,321	)		11,617
2019		4,206		—		6,616		(5,239	)		5,583

Schedule of Accumulated Other Comprehensive Income (Loss)

Components of accumulated other comprehensive income at December 31, 2021 are as follows:

	Pension and postretirement benefits		Foreign currency			Total
	(In thousands)
Balance at beginning of period	$	55	$	1,258		$	1,313
Other comprehensive income before reclassifications		—		(1,516	)		(1,516	)
Amounts reclassified from accumulated other comprehensive income, net of tax of ($112)		339		—			339
Net current period other comprehensive income (loss), net		339		(1,516	)		(1,177	)
Accumulated other comprehensive income	$	394	$	(258	)	$	136

Reclassifications out of accumulated other comprehensive income during 2021 are immaterial.

Components of accumulated other comprehensive income at December 31, 2020 are as follows:

	Pension and postretirement benefits			Foreign currency		Total
	(In thousands)
Balance at beginning of period	$	263		$	162	$	425
Other comprehensive income before reclassifications		—			1,096		1,096
Amounts reclassified from accumulated other comprehensive income, net of tax of $69		(208	)		—		(208	)
Net current period other comprehensive (loss) income, net		(208	)		1,096		888
Accumulated other comprehensive income	$	55		$	1,258	$	1,313

Reclassifications out of accumulated other comprehensive income during 2020 were immaterial.