Accumulated Other Comprehensive Income (Loss) (Summary Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	$ 3,276,107	$ 3,252,228
Balance	3,290,886	3,263,853
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	17,871	14,130
Change associated with foreign currency translation	(12,098)	3,571
Balance	5,773	17,701
Cash Flow Hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	17,245	(2,909)
Change associated with current period hedging	5,792	(294)
Reclassification into earnings	367	413
Balance	23,404	(2,790)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	35,116	11,221
Change associated with foreign currency translation	(12,098)	3,571
Change associated with current period hedging	5,792	(294)
Reclassification into earnings	367	413
Balance	$ 29,177	$ 14,911