CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) shares in Thousands, $ in Thousands		9 Months Ended		12 Months Ended
		Dec. 31, 2015		Mar. 31, 2015		Mar. 31, 2014
Operating Activities
Net income	[1],[2]	$ 186,330		$ 194,999		$ 117,205
Net income from discontinued operations	[2]	(1,008)		(125,049)		(181,463)
Income (loss) from continuing operations, before noncontrolling interest	[1],[2]	185,322		69,950		(64,258)
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities of continuing operations:
Depreciation	[2]	89,374		72,843		69,192
Amortization of intangible assets	[2]	33,371		9,263		3,112
Amortization of debt discount	[2]	0		3,212		7,364
Amortization and write-off of deferred financing costs	[2]	12,666		5,157		10,222
Goodwill impairment	[1],[2]	0		34,300		3,700
Fixed Asset impairment	[2]	7,619		17,559		23,369
Loss on the extinguishment of debt	[1],[2]	0		26,626		0
Deferred income taxes	[2]	57,587		12,378		(113,001)
Forward loss	[2]	0		0		342,000
Loss on disposal of property	[2]	11,197		2,114		594
Share-based plans expense	[2]	19,589		25,325		12,701
Excess tax benefits from share-based plans	[2]	(4,997)		(7,004)		(833)
Changes in assets and liabilities:
Net receivables	[2]	16,839		9,736		79,827
Net inventories	[2]	(15,598)		13,570		(63,437)
Accounts payable	[2]	(29,276)		55,710		(71,314)
Contract advances and allowances	[2]	(1,152)		(5,635)		(44,107)
Contract loss reserve	[2]	(26,697)		(74,468)		(45,060)
Accrued compensation	[2]	(10,243)		(31,293)		(16,362)
Contract-related liabilities	[2]	(19,435)		94,520		(13,725)
Pension and other postretirement benefits	[2]	(3,736)		(41,569)		70,750
Other assets and liabilities	[2]	(19,028)		(101,439)		(28,773)
Cash provided by operating activities of continuing operations	[2]	303,402		190,855		161,961
Cash provided by operating activities of discontinued operations	[2]	0		120,476		226,060
Cash provided by operating activities	[2]	303,402		311,331		388,021
Investing Activities
Capital expenditures	[2]	(104,634)		(112,704)		(105,730)
Cash acquired in Merger with Orbital	[2]	0		253,734		0
Cash dividend (refunded to) received from Vista Outdoor, net of cash transferred to Vista Outdoor in conjunction with the Distribution of Sporting Group	[2]	(6,500)		188,878		0
Proceeds from the disposition of property plant and equipment	[2]	40		2,290		5,488
Cash (used for) provided by investing activities of continuing operations	[2]	(111,094)		332,198		(100,242)
Cash used for investing activities of discontinued operations	[2]	0		(30,585)		(1,341,747)
Cash (used for) provided by investing activities	[2]	(111,094)		301,613		(1,441,989)
Financing Activities
Credit facility borrowings	[2]	745,000		878,000		280,000
Credit facility payments	[2]	(745,000)		(878,000)		(280,000)
Payments made on bank debt	[2]	(24,999)		(58,249)		(38,263)
Payments made to extinguish debt	[2]	(1,273,502)		(777,220)		(510,000)
Proceeds from issuance of long-term debt	[2]	1,200,000		150,000		1,560,000
Payments made for debt issue costs	[2]	(10,262)		(1,008)		(21,641)
Purchase of treasury shares	[2]	(81,344)		(16,788)		(53,270)
Dividends paid	[2]	(46,103)		(41,056)		(35,134)
Proceeds from employee stock compensation plans	[2]	3,684		0		729
Excess tax benefits from share-based plans	[2]	4,997		7,004		833
Cash (used for) provided by financing activities of continuing operations	[2]	(227,529)		(737,317)		903,254
Effect of foreign currency exchange rate fluctuations on cash	[2]	0		(3,006)		58
Decrease in cash and cash equivalents	[2]	(35,221)		(127,379)		(150,656)
Cash and cash equivalents at beginning of period	[2]	139,253	[3]	266,632		417,288
Cash and cash equivalents at end of period	[2]	104,032	[3]	139,253	[3]	266,632
Supplemental Cash Flow Disclosures
Cash paid for interest, net	[2]	40,900		77,630		54,426
Cash paid for income taxes, net	[2]	$ 26,458		$ 143,108		$ 136,295
Noncash financing activity:
Issuance of shares for noncash assets and liabilities of Orbital	[2]	0		1,504,243		0
Noncash investing activity:
Capital expenditures included in accounts payable of continuing operations	[2]	$ 4,515		$ 2,567		$ 8,645

[1] See Note 2 - Restatement

[2] See Note 2 - Restatement

[3] See Note 2 - Restatement