Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income/(loss)	$ (20,400,686)	$ (1,441,815)	$ 129,688,382
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Depreciation and amortization	65,329,951	65,057,487	42,591,942
Amortization of financing costs	7,506,509	3,709,421	2,499,185
Unrealized (gain)/loss on derivatives	(8,421,531)	(27,491,333)	8,917,503
Stock-based compensation expense	5,138,489	4,385,911	4,052,249
Loss on disposal of assets			1,125,395
Gain on early extinguishment of debt	(4,117,364)
Unrealized foreign currency (gain)/loss, net	(63,761)	222,281	96,550
Other non-cash items	144,545	305,774	138,588
Changes in operating assets and liabilities
Trade receivables, net and accrued revenue	(325,132)	96,287	22,739,907
Prepaid expenses and other receivables	(579,981)	343,902	(467,158)
Due from related parties	15,576,280	9,847,359	(71,717,616)
Inventories	567,835	(292,669)	1,087,686
Other non-current assets	(10,171)	19,802	2,175
Trade accounts payable	(561,808)	743,993	1,044,595
Accrued expenses and other liabilities	(2,406,945)	(1,172,349)	9,045,077
Due to related parties	334,353	(697,048)	183,040
Payments for drydocking costs	(461,480)	(1,533,235)
Net cash provided by operating activities	57,249,103	52,103,768	151,027,500
Cash flows from investing activities:
Capital expenditures	(297,534)	(1,911,182)	(895,063,383)
Restricted cash deposits	(11,010,780)	(64,146)	(17,602,789)
Restricted cash released	36,022,222	2,789
Proceeds from disposal of assets			2,713,660
Payments to acquire other fixed assets	(139,503)	(8,483)	(462,329)
Net cash provided by/(used in) investing activities	24,574,405	(1,981,022)	(910,414,841)
Cash flows from financing activities:
Proceeds from long-term debt borrowings	261,000,000		676,819,873
Repayment of long-term debt borrowings	(251,994,382)	(66,265,644)	(40,794,928)
Purchase of treasury stock	(1,220,535)	(12,953,453)	(20,943,816)
Financing costs paid	(3,113,425)	(99,785)	(13,990,720)
Net cash provided by/(used in) financing activities	4,671,658	(79,318,882)	601,090,409
Effects of exchange rates on cash and cash equivalents	(8,042)	(197,274)	(112,289)
Net increase/(decrease) in cash and cash equivalents	86,487,124	(29,393,410)	(158,409,221)
Cash and cash equivalents at the beginning of the period	17,018,552	46,411,962	204,821,183
Cash and cash equivalents at the end of the period	103,505,676	17,018,552	46,411,962
Supplemental disclosure of cash flow information
Cash paid during the period for interest excluding interest capitalized to vessels	27,958,102	$ 24,537,376	8,354,474
Predelivery costs for vessels and vessels under construction included in liabilities			$ 1,040,189
Financing costs included in liabilities	$ 142,434