CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 674,923	$ 678,438
Trade and other receivables, net	209,850	228,113
Due from affiliate	300,757	338,595
Marine operating supplies	31,124	33,413
Other current assets	31,874	44,755
Total current assets	1,248,528	1,323,314
Investments in, at equity, and advances to unconsolidated companies	38,200	37,502
Properties and equipment:
Vessels and related equipment	4,486,959	4,666,749
Other properties and equipment	78,459	92,065
Properties and equipment, gross	4,565,418	4,758,814
Less accumulated depreciation and amortization	1,253,851	1,207,523
Net properties and equipment	3,311,567	3,551,291
Other assets	89,967	71,686
Total assets	4,688,262	4,983,793
Current liabilities:
Accounts payable	64,231	49,130
Accrued expenses	76,085	91,611
Due to affiliate	175,925	187,971
Accrued property and liability losses	3,602	3,321
Current portion of long-term debt	2,041,367	2,045,516
Other current liabilities	60,345	74,825
Total current liabilities	2,421,555	2,452,374
Deferred income taxes	48,204	34,841
Accrued property and liability losses	11,210	9,478
Other liabilities and deferred credits	164,530	181,546
Commitments and Contingencies (Note 8)
Equity:
Common stock of $0.10 par value, 125,000,000 shares authorized, issued 47,068,079 shares at September 30, 2016 and 47,067,715 shares at March 31, 2016	4,707	4,707
Additional paid-in capital	169,443	166,604
Retained earnings	1,867,701	2,135,075
Accumulated other comprehensive loss	(6,443)	(6,866)
Total stockholders’ equity	2,035,408	2,299,520
Noncontrolling Interests	7,355	6,034
Total equity	2,042,763	2,305,554
Total liabilities and equity	$ 4,688,262	$ 4,983,793