Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss)
Beginning of the period	$ 2,257,560	$ 2,398,738
Other comprehensive income (loss)	749	(16,711)
End of the period	2,226,075	2,362,358
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Beginning of the period	(100,869)
Other comprehensive income (loss)	(1,529)
End of the period	(102,398)
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Beginning of the period	4,525
Other comprehensive income (loss)	(4)
End of the period	4,521
Deferred Hedging Gains (Losses)
Accumulated Other Comprehensive Income (Loss)
Beginning of the period	(3,933)
Other comprehensive income (loss)	2,282
End of the period	(1,651)
Total
Accumulated Other Comprehensive Income (Loss)
Beginning of the period	(100,277)	(104,123)
End of the period	$ (99,528)	$ (120,834)