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Details of Selected Balance Sheet Accounts (Tables)

9 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accounts Receivable, Net

Additional information regarding selected balance sheet accounts as of September 30, 2025 and December 31, 2024 is presented below (in thousands):

			September 30, 2025						December 31, 2024
Accounts receivable, net:
Trade			$	130,016					$	128,167
Unbilled revenue			23,297						22,242
Contract assets			43,573						40,101
Other			7,255						6,440
Total accounts receivable			204,141						196,950
Allowance for doubtful accounts			(2,524)						(2,614)
			$	201,617					$	194,336
Allowance for doubtful accounts as a percentage of total accounts receivable			1		%				1		%

Schedule of Contract with Customer, Asset and Liability

			September 30, 2025						December 31, 2024
Deferred revenue (contract liabilities)			$	73,200					$	52,399

Schedule of Accounts Receivable, Allowance for Credit Loss

The following provides a summary of activity in the allowance for doubtful accounts for the nine months ended September 30, 2025 and 2024 (in thousands):

			Nine Months Ended September 30,
			2025						2024
Allowance for doubtful accounts – January 1			$	2,614					$	4,497
Provisions			195						855
Write-offs			(615)						(726)
Other			330						84
Allowance for doubtful accounts – September 30			$	2,524					$	4,710

Schedule of Inventory, Net

			September 30, 2025						December 31, 2024
Inventories, net:
Finished goods and purchased products			$	111,034					$	110,850
Work in process			37,174						34,539
Raw materials			109,232						108,421
Total inventories			257,440						253,810
Allowance for excess or obsolete inventory			(34,571)						(38,974)
			$	222,869					$	214,836

Schedule of Property, Plant and Equipment, Net

									September 30, 2025						December 31, 2024
Property, plant and equipment, net:
Property, plant and equipment						$	751,543					$	734,548
Accumulated depreciation						(478,290)						(467,677)
																					$	273,253					$	266,871

Schedule of Finite-Lived Intangible Assets

			September 30, 2025																		December 31, 2024
			Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount						Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount
Other intangible assets:
Customer relationships			$	123,064					$	61,142					$	61,922					$	122,859					$	55,534					$	67,325
Patents/Technology/Know-how			70,269						43,640						26,629						70,206						39,699						30,507
Tradenames and other			47,751						21,638						26,113						47,729						19,699						28,030
			$	241,084					$	126,420					$	114,664					$	240,794					$	114,932					$	125,862

Schedule of Other Noncurrent Assets

			September 30, 2025						December 31, 2024
Other noncurrent assets:
Deferred compensation plan			$	19,309					$	18,245
Deferred financing costs			1,130						1,619
Deferred income taxes			2,454						1,964
Other			3,437						3,075
			$	26,330					$	24,903

Schedule of Accrued Liabilities

			September 30, 2025						December 31, 2024
Accrued liabilities:
Accrued compensation			$	18,246					$	22,350
Accrued taxes, other than income taxes			4,371						1,234
Insurance liabilities			3,067						3,383
Accrued interest			2,504						1,555
Accrued commissions			2,971						3,237
Other			6,693						5,102
			$	37,852					$	36,861

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