Goodwill and Intangible Assets Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Goodwill [Line Items]
Goodwill	$ 4,404,343	$ 3,026,049	$ 2,356,085
Goodwill, Purchase Accounting Adjustments	(15,819)	1,522,381
Goodwill, Acquired During Period		570,483
Goodwill, Written off Related to Sale of Business Unit	(7,000)
Goodwill, Foreign Currency Translation Gain (Loss)	(121,268)	99,481
Healthcare [Member]
Goodwill [Line Items]
Goodwill	2,326,830	1,384,763	827,266
Goodwill, Purchase Accounting Adjustments	(6,533)	1,019,332
Goodwill, Acquired During Period		536,713
Goodwill, Written off Related to Sale of Business Unit	(7,000)
Goodwill, Foreign Currency Translation Gain (Loss)	(63,732)	20,784
Applied Sterilization Technologies [Member]
Goodwill [Line Items]
Goodwill	1,432,858	1,492,239	1,380,262
Goodwill, Purchase Accounting Adjustments	(9,286)	0
Goodwill, Acquired During Period		33,770
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Foreign Currency Translation Gain (Loss)	(50,095)	78,207
Life Sciences
Goodwill [Line Items]
Goodwill	179,288	149,047	148,557
Goodwill, Purchase Accounting Adjustments	0	30,356
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Foreign Currency Translation Gain (Loss)	(115)	490
Dental
Goodwill [Line Items]
Goodwill	465,367	0	$ 0
Goodwill, Purchase Accounting Adjustments	0	472,693
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill, Foreign Currency Translation Gain (Loss)	$ (7,326)	$ 0