CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 706,404	$ 678,438
Trade and other receivables, less allowance for doubtful accounts of $16,165 in 2017 and $11,450 in 2016	123,262	228,113
Due from affiliate	262,652	338,595
Marine operating supplies	30,560	33,413
Other current assets	18,409	44,755
Total current assets	1,141,287	1,323,314
Investments in, at equity, and advances to unconsolidated companies	45,115	37,502
Net properties and equipment	2,864,762	3,551,291
Other assets	139,535	71,686
Total assets	4,190,699	4,983,793
Current liabilities:
Accounts payable	31,599	49,130
Accrued expenses	78,121	91,611
Due to affiliate	132,857	187,971
Accrued property and liability losses	3,583	3,321
Current portion of long-term debt	2,034,124	2,045,516
Other current liabilities	48,429	74,825
Total current liabilities	2,328,713	2,452,374
Deferred income taxes	46,013	34,841
Accrued property and liability losses	10,209	9,478
Other liabilities and deferred credits	154,705	181,546
Commitments and Contingencies (Note 12)
Equity:
Common stock of $0.10 par value, 125,000,000 shares authorized, issued 47,121,304 shares at March 31, 2017 and 47,067,715 shares at March 31, 2016	4,712	4,707
Additional paid-in capital	165,221	166,604
Retained earnings	1,475,329	2,135,075
Accumulated other comprehensive loss	(10,344)	(6,866)
Total stockholders’ equity	1,634,918	2,299,520
Noncontrolling interests	16,141	6,034
Total equity	1,651,059	2,305,554
Total liabilities and equity	$ 4,190,699	$ 4,983,793