Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income/(loss)	$ (1,441,815)	$ 129,688,382	$ 25,260,782
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Impairment	0	0	1,431,818
Depreciation and amortization	65,057,487	42,591,942	14,093,744
Amortization of financing costs	3,709,421	2,499,185	830,899
Unrealized (gain)loss on derivatives	(27,491,333)	8,917,503	(1,331,954)
Stock-based compensation expense	4,385,911	4,052,249	2,311,565
Loss on disposal of assets		1,125,395
Unrealized foreign currency loss, net	222,281	96,550	1,244,394
Other non-cash items	305,774	138,588	489,039
Changes in operating assets and liabilities
Trade receivables, net and accrued revenue	96,287	22,739,907	(21,018,670)
Prepaid expenses and other receivables	343,902	(467,158)	(1,437,501)
Due from related parties	9,847,359	(71,717,616)	1,252,754
Inventories	(292,669)	1,087,686	(2,317,430)
Other non-current assets	19,802	2,175	(97,446)
Trade accounts payable	743,993	1,044,595	2,731,828
Accrued expenses and other liabilities	(1,172,349)	9,045,077	2,306,631
Due to related parties	(697,048)	183,040	411,705
Payments for drydocking costs	(1,533,235)		(538,938)
Net cash provided by operating activities	52,103,768	151,027,500	25,623,220
Cash flows from investing activities:
Payments for vessels and vessels under construction	(1,911,182)	(895,063,383)	(314,173,298)
Restricted cash deposits	(64,146)	(17,602,789)	(28,700,000)
Restricted cash released	2,789		30,938,702
Proceeds from disposal of assets		2,713,660
Payments to acquire other fixed assets	(8,483)	(462,329)	(392,248)
Net cash used in investing activities	(1,981,022)	(910,414,841)	(312,326,844)
Cash flows from financing activities:
Proceeds from long-term debt borrowings		676,819,873	80,086,143
Repayment of long-term debt borrowings	(66,265,644)	(40,794,928)	(9,612,000)
Purchase of treasury stock	(12,953,453)	(20,943,816)
Financing costs paid	(99,785)	(13,990,720)	(11,220,812)
Cash proceeds from common share issuances			155,830,178
Payments relating to issuance costs			(1,388,918)
Net cash (used in)/provided by financing activities	(79,318,882)	601,090,409	213,694,591
Effects of exchange rates on cash and cash equivalents	(197,274)	(112,289)	(1,301,579)
Net decrease in cash and cash equivalents	(29,393,410)	(158,409,221)	(74,310,612)
Cash and cash equivalents at the beginning of the period	46,411,962	204,821,183	204,821,183
Cash and cash equivalents at the end of the period	17,018,552	46,411,962	204,821,183
Supplemental disclosure of cash flow information
Cash paid during the period for interest excluding interest capitalized to vessels	$ 24,537,376	8,354,474	69,323
Predelivery costs for vessels and vessels under construction included in liabilities		$ 1,040,189	1,211,534
Financing costs included in liabilities			1,039,479
Issuance costs included in liabilities			$ 244,414