Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 90,170,480	$ 307,446,913	$ 172,443,930
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	69,599,087	68,665,907	63,396,131
Non-cash lease expense	32,487,533	29,116,821	10,866,495
Amortization of financing costs	1,219,532	1,243,360	5,600,493
Unrealized (gain)/loss on derivatives	5,786,717	(5,665)	(2,766,065)
Stock-based compensation expense	10,423,520	8,334,838	4,280,387
Unrealized foreign currency (gain)/loss, net	(18,153)	285,277	921,289
Other non-cash items, net	821,699	(3,230,571)	(4,571,737)
Changes in operating assets and liabilities
Trade receivables, inventories, prepaid expenses, and other current and non-current assets	(1,072,377)	(926,439)	(2,693,495)
Due from related parties	3,162,641	16,317,153	(16,387,264)
Operating lease liabilities - current and long-term	(32,488,879)	(28,210,348)	(9,078,157)
Trade accounts payable	(35,347)	(1,266,860)	591,835
Accrued expenses and other liabilities	1,424,045	(1,338,519)	2,498,574
Due to related parties	32,056	(161,510)	131,360
Payments for drydocking costs	(8,499,063)	(7,823,549)	(1,173,940)
Net cash provided by operating activities	173,013,491	388,446,808	224,059,836
Cash flows from investing activities:
Payments for vessels under construction and other capital expenditures for vessels	(18,948,804)	(32,853,093)	(68,781,071)
Purchase of investment securities	(213,592)	(5,978,390)
Purchase of U.S. treasury notes			(11,275,322)
Proceeds from sale of investment securities		4,029,944	3,718,981
Proceeds from maturity of available-for-sale debt securities	11,800,000
Payments to acquire other fixed assets			(3,778)
Net cash used in investing activities	(7,362,396)	(34,801,539)	(76,341,190)
Cash flows from financing activities:
Proceeds from long-term debt borrowings			346,000,000
Repayment of long-term debt borrowings	(53,033,315)	(53,110,676)	(352,458,012)
Repurchase of common stock	(6,266,718)	(3,940,401)	(1,669,902)
Financing costs paid		(407,500)	(6,506,267)
Dividends paid	(156,398,056)	(162,260,785)	(220,597,827)
Proceeds from common share issuances	89,000,000
Equity offering costs paid	(4,590,638)
Net cash used in financing activities	(131,288,727)	(219,719,362)	(235,232,008)
Effects of exchange rates on cash and cash equivalents	7,475	(215,788)	(449,902)
Net increase/(decrease) in cash, cash equivalents, and restricted cash	34,369,843	133,710,119	(87,963,264)
Cash, cash equivalents, and restricted cash at the beginning of the period	282,583,769	148,873,650	236,836,914
Cash, cash equivalents, and restricted cash at the end of the period	316,953,612	282,583,769	148,873,650
Supplemental disclosure of cash flow information
Cash paid for interest, net of amounts capitalized	32,808,467	37,886,561	31,071,625
Cash paid for operating leases	42,290,030	42,101,279	11,965,581
Right of use assets recognized		62,646,575	163,337,516
Unpaid lease liability upon initial recognition		61,746,575	161,574,834
Capitalized drydocking costs included in liabilities	2,712,600	1,179,778	234,290
Vessel-related capital expenditures included in liabilities	1,003,032	1,027,316	1,317,456
Unpaid dividends included in liabilities	915,150	1,149,665	1,255,861
Financing costs included in liabilities	663,600	663,600	663,600
Reconcilliation of cash and cash equivalents and restricted cash reported within the consolidated balance sheets to the total amount of such items reported in the statements of cash flows:
Cash and cash equivalents	316,877,584	282,507,971	148,797,232
Restricted cash - non-current	76,028	75,798	76,418
Cash and cash equivalents and restricted cash at end of period shown in the statement of cash flows	$ 316,953,612	$ 282,583,769	$ 148,873,650