INCOME TAXES (Deferred Tax Assets and Liabilties) (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Capitalized R&D	$ 52,527	$ 60,818
Operating lease liabilities	37,733	40,840
Inventories, net	24,649	23,926
Incentive compensation	12,402	11,011
Environmental reserves	9,961	9,324
Net operating loss	5,264	6,431
Other	44,527	34,264
Total deferred tax assets	187,063	186,614
Deferred tax liabilities:
Goodwill	127,615	117,340
Intangible Assets	55,610	62,277
Net pension (liability)/asset	53,468	46,828
Operating lease right-of-use assets, net	35,005	38,741
Withholding Taxes	14,682	13,017
Depreciation	18,507	14,880
Contract revenue recognition	13,296	15,256
Other	9,410	3,776
Total deferred tax liabilities	327,593	312,115
Valuation allowance	3,953	4,988
Deferred Tax Liabilities, Net	$ 144,483	$ 130,489