Stockholders' Equity (Narratives) (Details)	12 Months Ended
	Mar. 31, 2022 $ / shares
Dividends Declared
Dividends payable, date declared	Oct. 06, 2021
Dividend paid, amount per share	$ 0.50
Dividends payable, date of record	Oct. 18, 2021
Dividends payable, date to be paid	Oct. 29, 2021
Dividends declared two [Member]
Dividends Declared
Dividends payable, date declared	Aug. 19, 2021
Dividend paid, amount per share	$ 0.50
Dividends payable, date of record	Sep. 07, 2021
Dividends payable, date to be paid	Sep. 21, 2021
Dividends declared three [Member]
Dividends Declared
Dividends payable, date declared	Jun. 09, 2021
Dividend paid, amount per share	$ 0.50
Dividends payable, date of record	Jun. 24, 2021
Dividends payable, date to be paid	Jul. 08, 2021
Dividends declared four [Member]
Dividends Declared
Dividends payable, date declared	Dec. 09, 2020
Dividend paid, amount per share	$ 2.00
Dividends payable, date of record	Dec. 21, 2020
Dividends payable, date to be paid	Dec. 30, 2020
Dividends declared five [Member]
Dividends Declared
Dividends payable, date declared	Aug. 20, 2020
Dividend paid, amount per share	$ 0.50
Dividends payable, date of record	Sep. 07, 2020
Dividends payable, date to be paid	Sep. 21, 2020