Dividends	12 Months Ended
	Mar. 31, 2021
Dividends [Abstract]
Dividends	Dividends On October 28, 2002, the Company announced that its Board of Directors had approved and instituted a quarterly cash dividend on its common stock. The Company has continued to pay quarterly dividends and has increased the amount of such dividends on a regular basis. Cash dividends paid per share were $1.494, $1.465 and $1.457 during fiscal 2021, 2020 and 2019, respectively. Total dividend payments amounted to $388.3 million, $350.1 million and $344.4 million during fiscal 2021, 2020 and 2019, respectively.