SEGMENT INFORMATION (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net sales		$ 503,507	$ 546,199
Operating income (expense)		57,263	72,835
Identifiable assets		2,963,652		$ 2,989,611
Commercial Industrial [Member]
Segment Reporting Information [Line Items]
Net sales		275,205	299,898
Operating income (expense)		30,052	43,289
Identifiable assets		1,502,825		1,480,052
Defense [Member]
Segment Reporting Information [Line Items]
Net sales		105,730	114,352
Operating income (expense)		16,845	18,027
Identifiable assets		804,191		800,613
Power [Member]
Segment Reporting Information [Line Items]
Net sales		123,746	135,135
Operating income (expense)		14,628	19,512
Identifiable assets		539,730		629,612
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales		(1,174)	(3,186)
Corporate and Eliminations [Member]
Segment Reporting Information [Line Items]
Operating income (expense)	[1]	(4,262)	$ (7,993)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Identifiable assets		$ 116,906		$ 79,334

[1] Corporate and eliminations includes pension and other postretirement benefit expense, certain environmental costs related to remediation at legacy sites, foreign currency transactional gains and losses, and certain other expenses.