CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jan. 01, 2012	Mar. 31, 2011
Current assets:
Cash and cash equivalents	$ 355,481	$ 702,274
Net receivables	961,184	945,611
Net inventories	333,226	242,028
Income tax receivable		22,228
Deferred income tax assets	70,990	65,843
Other current assets	52,631	81,249
Total current assets	1,773,512	2,059,233
Net property, plant, and equipment	601,343	587,749
Goodwill	1,251,536	1,251,536
Deferred income tax assets	97,673	100,519
Deferred charges and other non-current assets	527,003	444,808
Total assets	4,251,067	4,443,845
Current liabilities:
Current portion of long-term debt	25,000	320,000
Accounts payable	224,991	292,281
Contract advances and allowances	120,638	121,927
Accrued compensation	105,195	135,442
Accrued income taxes	19,066
Other accrued liabilities	281,974	193,836
Total current liabilities	776,864	1,063,486
Long-term debt	1,280,360	1,289,709
Postretirement and postemployment benefits liabilities	118,868	126,012
Accrued pension liability	636,671	671,356
Other long-term liabilities	118,006	127,160
Total liabilities	2,930,769	3,277,723
Commitments and contingencies (Note 15)
Common stock-$.01 par value: Authorized-180,000,000 shares Issued and outstanding-32,976,504 shares at January, 1, 2012 and 33,519,072 shares at March 31, 2011	330	335
Additional paid-in-capital	556,808	559,279
Retained earnings	2,186,923	2,005,651
Accumulated other comprehensive loss	(777,751)	(787,077)
Common stock in treasury, at cost- 8,578,945 shares held at January 1, 2012 and 8,036,377 shares held at March 31, 2011	(655,744)	(621,430)
Total Alliant Techsystems Inc. stockholders' equity	1,310,566	1,156,758
Noncontrolling interest	9,732	9,364
Total stockholders' equity	1,320,298	1,166,122
Total liabilities and stockholders' equity	$ 4,251,067	$ 4,443,845