CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Mar. 31, 2013
ASSETS
Cash and cash equivalents	$ 313,521	$ 215,623
Accounts receivable from non-affiliates, net of allowance for doubtful accounts	232,767	254,520
Accounts receivable from affiliates, net of allowance for doubtful accounts	8,109	8,261
Inventories	158,622	153,969
Assets held for sale	26,719	8,290
Prepaid expenses and other current assets	30,950	35,095
Total current assets	770,688	675,758
Investment in unconsolidated affiliates	272,345	272,123
Property and equipment - at cost:
Total property and equipment, at cost	2,552,805	2,414,647
Less - Accumulated depreciation and amortization	(518,142)	(493,575)
Total property and equipment, net	2,034,663	1,921,072
Goodwill	29,804	28,897
Other assets	58,492	52,842
Total assets	3,165,992	2,950,692
LIABILITIES AND STOCKHOLDERS' INVESTMENT
Accounts payable	70,157	69,821
Accrued wages, benefits and related taxes	49,122	56,084
Income taxes payable	32,964	11,659
Other accrued taxes	9,592	7,938
Deferred revenue	21,405	21,646
Accrued maintenance and repairs	17,109	15,391
Accrued interest	15,690	14,249
Other accrued liabilities	23,869	20,714
Current deferred taxes	2,394	0
Short-term borrowings and current maturities of long-term debt	6,989	22,323
Total current liabilities	249,291	239,825
Total long-term debt	824,094	764,946
Accrued pension liabilities	127,296	126,647
Other liabilities and deferred credits	49,529	57,196
Deferred taxes	155,303	151,121
Commitments and Contingencies
Stockholders' investment:
Common stock	372	367
Additional paid-in capital	752,614	731,883
Retained earnings	1,214,157	1,094,803
Accumulated other comprehensive loss	(188,476)	(199,683)
Treasury shares	(26,304)	(26,304)
Stockholders' equity	1,752,363	1,601,066
Noncontrolling interests	8,116	9,891
Total stockholders' investment	1,760,479	1,610,957
Total liabilities and stockholders' investment	3,165,992	2,950,692
Land and Building [Member]
Property and equipment - at cost:
Total property and equipment, at cost	111,406	108,593
Aircraft And Equipment [Member]
Property and equipment - at cost:
Total property and equipment, at cost	$ 2,441,399	$ 2,306,054