Dividends (Details) - USD ($)		3 Months Ended						9 Months Ended
	Aug. 05, 2024	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Dividends Payable [Line Items]
Dividends, total cash amount		$ 42,804,479	$ 42,804,479	$ 40,619,448	$ 40,607,892	$ 40,570,888	$ 40,382,730
Dividends, cash paid on payment date								$ 126,620,555	$ 121,924,216
Cash payments on deferred dividends	$ 1,100,000
Q1 Irregular Cash Dividend
Dividends Payable [Line Items]
Dividends Payable, Date Declared				Apr. 25, 2024
Dividends Payable, Date of Record				May 08, 2024
Dividends Payable, Date to be Paid				May 29, 2024
Dividends, amount declared per share				$ 1
Dividends, total cash amount				$ 40,600,000
Dividends, cash paid on payment date				40,400,000
Dividends, amount deferred on payment date				$ 200,000
Q2 Irregular Cash Dividend
Dividends Payable [Line Items]
Dividends Payable, Date Declared			Jul. 24, 2024
Dividends Payable, Date of Record			Aug. 08, 2024
Dividends Payable, Date to be Paid			Aug. 21, 2024
Dividends, amount declared per share			$ 1
Dividends, total cash amount			$ 42,800,000
Dividends, cash paid on payment date			42,600,000
Dividends, amount deferred on payment date			$ 200,000
Q3 Irregular Cash Dividends
Dividends Payable [Line Items]
Dividends Payable, Date Declared		Oct. 24, 2024
Dividends Payable, Date of Record		Nov. 05, 2024
Dividends Payable, Date to be Paid		Nov. 22, 2024
Dividends, amount declared per share		$ 1
Dividends, total cash amount		$ 42,800,000
Dividends, cash paid on payment date		42,600,000
Dividends, amount deferred on payment date		$ 200,000						$ 200,000