RESTRUCTURING COSTS - Schedule of Restructuring Reserve Activities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		$ 0
Provision	$ 2,918	2,918	$ 0
Cash Payments		(1,469)
Restructuring Liability, Ending Balance	1,449	1,449
Aerospace & Industrial
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		1,227
Cash Payments		(862)
Restructuring Liability, Ending Balance	365	365
Defense Electronics
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		526
Cash Payments		(368)
Restructuring Liability, Ending Balance	158	158
Naval & Power
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		198
Cash Payments		(198)
Restructuring Liability, Ending Balance	0	0
Severance
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		1,776
Cash Payments		(1,345)
Restructuring Liability, Ending Balance	431	431
Severance | Aerospace & Industrial
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		835
Cash Payments		(770)
Restructuring Liability, Ending Balance	65	65
Severance | Defense Electronics
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		526
Cash Payments		(368)
Restructuring Liability, Ending Balance	158	158
Severance | Naval & Power
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		198
Cash Payments		(198)
Restructuring Liability, Ending Balance	0	0
Facility closure and other costs
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		1,142
Cash Payments		(124)
Restructuring Liability, Ending Balance	1,018	1,018
Facility closure and other costs | Aerospace & Industrial
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		392
Cash Payments		(92)
Restructuring Liability, Ending Balance	300	300
Facility closure and other costs | Defense Electronics
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		0
Cash Payments		0
Restructuring Liability, Ending Balance	0	0
Facility closure and other costs | Naval & Power
Restructuring Reserve [Roll Forward]
Restructuring Liability, Beginning Balance		0
Provision		0
Cash Payments		0
Restructuring Liability, Ending Balance	$ 0	$ 0