Fair Value Measurements Fair Value Hierarchy (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021
Reported Value Measurement [Member]
Assets:
Cash and cash equivalents		$ 359,089		$ 359,089		$ 220,531
Forward and swap contracts	[1]	685		685		57
Equity Securities, FV-NI	[2]	9,957		9,957		10,301
Investments		2,571		2,571		2,665
Liabilities:
Deferred compensation plans	[2]	2,062		2,062		1,715
Long term debt		3,299,509		3,299,509		1,650,540
Contingent consideration obligations		12,864		12,864		19,642
Foreign Currency Contracts, Liability, Fair Value Disclosure	[1]	91		91		367
Debt and Equity Securities, Gain (Loss)		(28)	$ (210)	200	$ (138)
Contingent consideration obligations		12,864		12,864		19,642
Level 1
Assets:
Cash and cash equivalents		359,089		359,089		220,531
Forward and swap contracts		0		0		0
Equity Securities, FV-NI	[2]	9,957		9,957		10,301
Investments		2,571		2,571		2,665
Liabilities:
Deferred compensation plans	[2]	2,062		2,062		1,715
Long term debt		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]	685		685		57
Equity Securities, FV-NI		0		0		0
Investments		0		0		0
Liabilities:
Deferred compensation plans		0		0		0
Long term debt		3,432,856		3,432,856		1,722,459
Contingent consideration obligations		0		0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure	[1]	91		91		367
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	[3]	12,864		12,864		19,642
Debt Instrument, Fair Value Disclosure		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 third quarter and first nine months of fiscal 2022, we recorded gains (losses) of $28 and $(200), respectively, related to these investments

[3] 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 captures 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