SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Gain (Loss) Related to Litigation Settlement	$ 134,693	$ 0
Net sales	896,905	943,683
Operating income (loss)	240,524	141,346
Interest expense and other	42,360	19,710
Income from continuing operations before income taxes	198,164	121,636
Depreciation and amortization	37,551	37,934
Amortization of Acquired Contract Liabilities	8,967	11,150
EBITDA	134,415	168,130
Capital expenditures	23,077	56,229
Total assets	5,858,612		5,553,283
Revenues	159,834	145,091
Aerostructures
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Net sales	611,863	651,888
Operating income (loss)	70,866	100,387
Depreciation and amortization	24,979	26,313
Amortization of Acquired Contract Liabilities	5,117	6,141
EBITDA	90,728	120,559
Capital expenditures	15,369	45,945
Total assets	3,867,170		3,880,645
Aerospace Systems
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Net sales	219,852	219,526
Operating income (loss)	37,352	42,643
Depreciation and amortization	9,517	8,539
Amortization of Acquired Contract Liabilities	3,850	5,009
EBITDA	43,019	46,173
Capital expenditures	5,663	4,432
Total assets	1,457,601		1,255,033
Aftermarket Services
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Net sales	67,608	74,353
Operating income (loss)	10,504	11,279
Depreciation and amortization	1,877	1,877
EBITDA	12,381	13,156
Capital expenditures	1,680	4,152
Total assets	318,067		316,643
Elimination of inter-segment sales
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Net sales	(2,418)	(2,084)
Corporate
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Operating income (loss)	121,802	(12,963)
Depreciation and amortization	1,178	1,205
EBITDA	(11,713)	(11,758)
Capital expenditures	365	1,700
Total assets	$ 215,774		$ 100,962