Reclassifications out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Sep. 30, 2022		Sep. 30, 2021		Sep. 30, 2022		Sep. 30, 2021		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ (598,148)		$ (105,733)		$ (598,148)		$ (105,733)		$ (388,373)	$ (209,808)	$ (36,817)	$ (61,243)
Other Comprehensive Income (Loss), Net of Tax		(209,653)		(67,824)		(388,093)		(42,300)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		(122)		(1,092)	[1]	(247)		(2,190)
Other Comprehensive (Loss) Income, Net of Tax, Portion Attributable to Parent		209,775		68,916		388,340		44,490
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax		1,332		(6,533)		1,332		(6,533)		1,305	1,276	(6,026)	(5,519)
Other Comprehensive Income (Loss), Net of Tax		149		585		303		1,176
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[2]	(122)		(1,092)		(247)		(2,190)
Other Comprehensive (Loss) Income, Net of Tax, Portion Attributable to Parent		(27)		507		(56)		1,014
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(599,480)		(99,200)		(599,480)		(99,200)		$ (389,678)	$ (211,084)	$ (30,791)	$ (55,724)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		(209,802)		(68,409)		(388,396)		(43,476)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		0	[1]	0		0	[1]	0	[1]
Other Comprehensive (Loss) Income, Net of Tax, Portion Attributable to Parent		$ 209,802		$ 68,409		$ 388,396		$ 43,476

[1] The effective portion of gain or loss on net debt designated as non-derivative net investment hedging instruments is recognized in Accumulated Other Comprehensive Income and is reclassified to income in the same period when a gain or loss related to the net investment is included in income.

[2] The amortization (gain) of defined benefit pension items is reported in the Interest income and miscellaneous expense line of our Consolidated Statements of Income.