SEGMENT INFORMATION (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net sales	$ 869,170	$ 798,918	$ 2,551,391	$ 2,296,876
Cost of sales	532,201	496,916	1,583,840	1,446,945
Research and development expenses	23,180	20,457	68,819	64,896
Selling expenses	40,021	36,797	120,079	107,188
General and administrative expenses	96,552	90,738	295,384	273,761
Other segment items	759	1,129	2,674	2,986
Operating income (expense)	166,251	144,903	451,763	373,761
Depreciation and amortization expense	31,191	26,693	93,319	80,844
Capital expenditures	16,900	14,584	52,054	37,703
Segment Assets	5,102,032		5,102,032		$ 4,985,704
Corporate and Other
Segment Reporting Information [Line Items]
Operating income (expense)	(10,866)	(9,210)	(31,843)	(30,863)
Depreciation and amortization expense	733	749	2,178	2,137
Capital expenditures	976	1,091	2,987	3,465
Segment Assets	385,185		385,185		520,691
Operating Segments
Segment Reporting Information [Line Items]
Operating income (expense)	177,117	154,113	483,606	404,624
Operating Segments | Aerospace & Industrial
Segment Reporting Information [Line Items]
Net sales	248,016	229,043	714,770	682,181
Cost of sales	157,340	148,676	457,124	447,082
Research and development expenses	5,164	4,961	18,185	17,649
Selling expenses	6,959	6,290	21,273	19,428
General and administrative expenses	32,543	30,552	101,415	95,519
Other segment items	571	1,129	2,406	2,356
Operating income (expense)	45,439	37,435	114,367	100,147
Depreciation and amortization expense	8,016	7,957	23,648	24,386
Capital expenditures	6,482	5,705	22,165	14,230
Segment Assets	1,134,609		1,134,609		1,090,739
Operating Segments | Defense Electronics
Segment Reporting Information [Line Items]
Net sales	253,637	243,695	753,514	685,388
Cost of sales	124,922	126,752	382,006	359,965
Research and development expenses	13,182	12,316	39,389	39,208
Selling expenses	16,065	15,868	46,999	43,766
General and administrative expenses	25,511	25,120	75,862	71,975
Other segment items	0	0	19	510
Operating income (expense)	73,957	63,639	209,239	169,964
Depreciation and amortization expense	7,702	7,645	22,910	23,207
Capital expenditures	2,650	3,244	8,577	7,675
Segment Assets	1,566,522		1,566,522		1,446,949
Operating Segments | Naval & Power
Segment Reporting Information [Line Items]
Net sales	368,177	327,412	1,086,118	932,831
Cost of sales	249,939	221,488	744,710	639,898
Research and development expenses	4,834	3,180	11,245	8,039
Selling expenses	16,997	14,639	51,807	43,994
General and administrative expenses	38,498	35,066	118,107	106,267
Other segment items	188	0	249	120
Operating income (expense)	57,721	53,039	160,000	134,513
Depreciation and amortization expense	14,740	10,342	44,583	31,114
Capital expenditures	6,792	4,544	18,325	12,333
Segment Assets	2,015,716		2,015,716		$ 1,927,325
Corporate and Eliminations
Segment Reporting Information [Line Items]
Net sales	(660)	(1,232)	(3,011)	(3,524)
Operating income (expense)	$ (10,866)	$ (9,210)	$ (31,843)	$ (30,863)