Business Segment Information Business Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 1,200,517	$ 1,196,985	$ 2,357,008	$ 2,165,407
Segment operating income	(306,415)	116,503	(148,020)	130,827
Restructuring Charges	62	210	89	224
2591744000	490,565	0	490,565	0
Amortization of acquired intangible assets	93,859	74,791	187,786	116,531
Business Combination, Acquisition Related Costs	3,844	17,404	13,676	158,400
loss (gain) on fair value contingent consideration adjustments	0	0	(3,100)	0
Impact of TCJA	77	159	251	110
Net loss on divestiture of businesses	899	(15)	4,777	404
Amortization of inventory and property step-up to fair value	2,452	69,486	4,089	94,276
Assets	10,489,636		10,489,636		$ 11,423,594
Property, Plant and Equipment, Net	1,572,398		1,572,398		$ 1,552,576
Life Sciences
Segment Reporting Information [Line Items]
Revenues	125,768	132,327	257,975	253,798
Segment operating income	48,619	57,519	103,924	106,607
Applied Sterilization Technologies
Segment Reporting Information [Line Items]
Revenues	232,358	204,892	453,269	413,794
Segment operating income	110,384	99,789	219,699	201,716
Corporate
Segment Reporting Information [Line Items]
Segment operating income	(67,056)	(79,497)	(142,999)	(156,771)
Segment operating income
Segment Reporting Information [Line Items]
Revenues	1,200,517	1,196,985	2,357,008	2,165,407
Segment operating income	285,343	278,538	550,113	500,772
Healthcare [Member] [Member]
Segment Reporting Information [Line Items]
Revenues	732,813	744,134	1,431,339	1,346,951
Segment operating income	165,337	168,335	321,834	306,709
Dental
Segment Reporting Information [Line Items]
Revenues	109,578	115,632	214,425	150,864
Segment operating income	$ 28,059	$ 32,392	$ 47,655	$ 42,511
Dental | Revenue Benchmark | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	40.10%	40.60%	42.10%	39.50%
Other foreign locations [Member]
Segment Reporting Information [Line Items]
Revenues	$ 311,541	$ 324,442	$ 615,755	$ 591,669
UNITED STATES
Segment Reporting Information [Line Items]
Revenues	871,981	852,497	1,706,082	1,531,747
UNITED KINGDOM
Segment Reporting Information [Line Items]
Revenues	16,995	20,046	35,171	41,991
Consumable revenues [Member] | Life Sciences
Segment Reporting Information [Line Items]
Revenues	57,420	61,748	116,977	118,284
Consumable revenues [Member] | Healthcare [Member] [Member]
Segment Reporting Information [Line Items]
Revenues	246,050	270,089	498,082	476,781
Sales Revenue, Services, Net [Member] | Life Sciences
Segment Reporting Information [Line Items]
Revenues	38,333	36,393	70,484	68,583
Sales Revenue, Services, Net [Member] | Healthcare [Member] [Member]
Segment Reporting Information [Line Items]
Revenues	274,279	271,640	541,639	516,875
Capital equipment revenues [Member] | Life Sciences
Segment Reporting Information [Line Items]
Revenues	30,015	34,186	70,514	66,931
Capital equipment revenues [Member] | Healthcare [Member] [Member]
Segment Reporting Information [Line Items]
Revenues	$ 212,484	$ 202,405	$ 391,618	$ 353,295