Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Details of Earnings Before Income Taxes

Details of earnings before income taxes are as follows:

	2024			2023		2022
	(In thousands)
Domestic	$	169,608		$	120,384	$	83,680
Foreign		(3,108	)		1,582		4,037
Total	$	166,500		$	121,966	$	87,717

Schedule of Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes is as follows:

	2024			2023			2022
	(In thousands)
Current:
Federal	$	41,201		$	29,629		$	20,089
State		9,955			8,147			4,720
Foreign		1,476			1,242			2,031
Deferred:
Federal		(8,001	)		(7,376	)		(4,289	)
State		(1,719	)		(1,332	)		(955	)
Foreign		(1,354	)		(942	)		(375	)
Total	$	41,558		$	29,368		$	21,221

Reconciliation of Provision for Income Taxes

The provision for income tax differs from the amount that would be provided by applying the statutory U.S. corporate income tax rate in each year due to the following items:

	2024			2023			2022
	(In thousands)
Provision at statutory rate	$	34,967		$	25,613		$	18,421
State income taxes, net of federal tax benefit		6,383			5,236			2,938
Valuation allowance		814			(78	)		571
Foreign - tax rate differential and other		456			340			388
Federal tax credits		(515	)		(1,548	)		(1,016	)
Compensation subject to section 162(m)		1,342			930			693
Stock based compensation		(1,062	)		(967	)		(523	)
Other		(827	)		(158	)		(251	)
Actual provision	$	41,558		$	29,368		$	21,221

Components of Deferred Income Taxes

The components of deferred income taxes as of December 31 are as follows:

	2024			2023
	(In thousands)
Deferred tax assets:
Reserve for receivables and inventory	$	3,396		$	2,959
Accrued compensation		3,791			4,069
Reserves and payables		3,826			2,509
Accrued post-retirement medical benefits		825			971
Net operating loss and credit carryforwards		6,089			4,948
Deferred compensation		1,739			1,269
Accrued qualified plan benefits		1,178			988
Accrued stock-based compensation		1,263			1,166
Deferred revenue		12,201			8,128
Operating lease liabilities		735			1,071
Research and development costs		8,007			5,744
Other		2,489			1,359
Total gross deferred tax assets		45,539			35,181
Less: valuation allowance		(3,297	)		(2,683	)
Total net deferred tax assets		42,242			32,498
Deferred tax liabilities:
Property, plant and equipment		3,743			4,323
Intangible assets		7,527			8,361
Prepaids		825			394
Operating lease assets		297			1,020
Other		977			746
Total deferred tax liabilities		13,369			14,844
Net deferred tax assets	$	28,873		$	17,654

Schedule of Changes in Gross Liability for Unrecognized Tax Benefits

Changes in the Company's gross liability for unrecognized tax benefits, excluding interest and penalties, were as follows:

	2024			2023
	(In thousands)
Balance at beginning of year	$	1,395		$	1,039
Increases (reductions) in unrecognized tax benefits as a result of positions taken    during the prior year		(172	)		84
Increases in unrecognized tax benefits as a result of positions taken during the    current year		342			485
Reductions to unrecognized tax benefits as a result of a lapse of the applicable    statute of limitations		(345	)		(213	)
Balance at end of year	$	1,220		$	1,395