Fair Value Measurements Fair Value Hierarchy (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
Reported Value Measurement [Member]
Assets:
Cash and cash equivalents		$ 258,259		$ 258,259		$ 348,320
Forward and swap contracts	[1]	2,324		2,324		2,780
Equity Securities, FV-NI	[2]	6,363		6,363		8,520
Investments		1,986		1,986		2,272
Liabilities:
Deferred compensation plans	[2]	989		989		1,240
Long term debt	[3]	3,024,936		3,024,936		3,088,356
Contingent consideration obligations		14,538		14,538		10,550
Foreign Currency Contracts, Liability, Fair Value Disclosure	[1]	1,230		1,230		198
Debt and Equity Securities, Gain (Loss)		643	$ 213	1,727	$ 229
Contingent consideration obligations		14,538		14,538		10,550
Level 1
Assets:
Cash and cash equivalents		258,259		258,259		348,320
Forward and swap contracts		0		0		0
Equity Securities, FV-NI	[2]	6,363		6,363		8,520
Investments		1,986		1,986		2,272
Liabilities:
Deferred compensation plans	[2]	989		989		1,240
Long term debt	[3]	0		0		0
Contingent consideration obligations		0		0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure		0		0		0
Level 2
Assets:
Cash and cash equivalents		0		0		0
Forward and swap contracts	[1]	2,324		2,324		2,780
Equity Securities, FV-NI		0		0		0
Investments		0		0		0
Liabilities:
Deferred compensation plans		0		0		0
Long term debt	[3]	2,591,744		2,591,744		2,991,680
Contingent consideration obligations		0		0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure	[1]	1,230		1,230		198
Level 3
Assets:
Cash and cash equivalents		0		0		0
Forward and swap contracts		0		0		0
Equity Securities, FV-NI		0		0		0
Investments		0		0		0
Liabilities:
Deferred compensation plans		0		0		0
Contingent consideration obligations	[4]	14,538		14,538		10,550
Debt Instrument, Fair Value Disclosure	[3]	0		0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure		$ 0		$ 0		$ 0

[1] The fair values of forward and swap contracts are based on period-end forward rates and reflect the value of the amount that we would pay or receive for the contracts involving the same notional amounts and maturity dates.

[2] We maintain a frozen domestic non-qualified deferred compensation plan covering certain employees, which allows for the deferral of payment of previously earned compensation for an employee-specified term or until retirement or termination. Amounts deferred can be allocated to various hypothetical investment options (compensation deferrals have been frozen under the plan). We hold investments to satisfy the future obligations of the plan. Employees who made deferrals are entitled to receive distributions of their hypothetical account balances (amounts deferred, together with earnings (losses)). We also hold an investment in the common stock of Servizi Italia, S.p.A, a leading provider of integrated linen washing and outsourced sterile processing services to hospital Customers. Changes in the fair value of these investments are recorded in the "Interest income and miscellaneous expense line" of the Consolidated Statement of Income. During the second quarter and first half of fiscal 2023, we recorded losses of $643 and $1,727, respectively, related to these investments. During the second quarter and first half of fiscal 2022, we recorded losses of $213 and $229, respectively, related to these investments.

[3] We estimate the fair value of our debt using discounted cash flow analyses, based on estimated current incremental borrowing rates for similar types of borrowing arrangements.

[4] Contingent consideration obligations arise from business acquisitions. The fair values are based on discounted cash flow analyses reflecting the possible achievement of specified performance measures or events and capture the contractual nature of the contingencies, commercial risk, and the time value of money. Contingent consideration obligations are classified in the consolidated balance sheets as accrued expense (short-term) and other liabilities (long-term), as appropriate based on the contractual payment dates