CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands		Total		Common Stock $.01 Par Value	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest
Balance at Mar. 31, 2013	[1]	$ 1,491,192		$ 323	$ 534,137	$ 2,462,114	$ (828,304)	$ (687,470)	$ 10,392
Balance (in shares) at Mar. 31, 2013	[1]			32,318,295
Increase (Decrease) in Stockholders' Equity
Comprehensive income (As Restated) (1)	[1]	264,700	[2]			117,034	147,495		171
Exercise of stock options		729			(252)			981
Exercise of stock options (in shares)				13,173
Restricted stock grants		0			(9,517)			9,517
Restricted stock grants (in shares)				116,533
Share-based compensation		12,701			12,701
Treasury stock purchased		(52,130)						(52,130)
Treasury stock purchased (in shares)				(609,922)
Shares issued net of treasury stock withheld		(1,406)			(3,856)			2,450
Shares issued net of treasury stock withheld (in shares)				34,138
Tax benefit related to share based plans and other		94			94
Dividends		(35,134)				(35,134)
Employee benefit plans and other		(3,858)		$ (5)	708			(4,561)
Employee benefit plans and other (in shares)				(29,575)
Balance at Mar. 31, 2014	[1]	1,676,888		$ 318	534,015	2,544,014	(680,809)	(731,213)	10,563
Balance (in shares) at Mar. 31, 2014	[1]			31,842,642
Increase (Decrease) in Stockholders' Equity
Comprehensive income (As Restated) (1)	[1]	$ (68,064)	[2]			194,900	(263,063)		99
Exercise of stock options (in shares)		0
Restricted stock grants					(10,850)			10,850
Restricted stock grants (in shares)				128,316
Share-based compensation		$ 25,325			25,325
Shares issued net of treasury stock withheld		(10,615)			(19,381)			8,766
Shares issued net of treasury stock withheld (in shares)				150,658
Tax benefit related to share based plans and other		6,445			6,445
Dividends		(56,507)				(56,507)
Employee benefit plans and other		(6,171)		$ 2	1,264			(7,437)
Employee benefit plans and other (in shares)				(73,179)
Convertible debt premium, net of tax of $43,170		(111,707)			(111,707)
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments				20,678
Distribution of Sporting Group (as restated)		(1,692,175)				(1,788,399)	96,224
Merger with Orbital (shares)				27,358,827
Merger with Orbital		1,757,977		$ 274	1,757,703
Balance at Mar. 31, 2015		1,521,396	[3]	$ 594	2,182,814	894,008	(847,648)	(719,034)	10,662
Balance (in shares) at Mar. 31, 2015				59,427,942.000
Increase (Decrease) in Stockholders' Equity
Comprehensive income (As Restated) (1)	[1]	248,070	[2]			186,187	61,740		143
Exercise of stock options		3,684			(5,502)			9,186
Exercise of stock options (in shares)				121,477
Restricted stock grants		0			(6,509)			6,509
Restricted stock grants (in shares)				67,529
Share-based compensation		19,589			19,589
Treasury stock purchased		(75,795)						(75,795)
Treasury stock purchased (in shares)				(1,008,445)
Shares issued net of treasury stock withheld		(5,223)			(15,127)			9,904
Shares issued net of treasury stock withheld (in shares)				125,717
Tax benefit related to share based plans and other		11,188			11,188
Dividends		(30,652)				(30,652)
Employee benefit plans and other		(319)		$ (7)	1,487			(1,799)
Employee benefit plans and other (in shares)				(4,225)
Distribution of Sporting Group (as restated)		(6,500)				(6,500)	0
Balance at Dec. 31, 2015	[1]	$ 1,685,438	[3]	$ 587	$ 2,187,940	$ 1,043,043	$ (785,908)	$ (771,029)	$ 10,805
Balance (in shares) at Dec. 31, 2015	[1]			58,729,995.000

[1] See Note 2 - Restatement

[2] See Note 2 - Restatement

[3] See Note 2 - Restatement