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Derivative Instruments (Derivative instruments in the condensed consolidated balance sheet) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Designated as Hedging Instrument \| Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ (90)	$ 300	$ (41)	$ 103
Designated as Hedging Instrument \| Foreign exchange contracts \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(150)		(150)		$ (96)
Designated as Hedging Instrument \| Foreign exchange contracts \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	0		0		43
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Prepaid expenses and other
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	0		0		470
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(507)		(507)		0
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	0		0		743
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(751)		(751)		0
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member] \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(173)		(173)		(774)
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member] \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	1,485		1,485		2,476
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member] \| Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(11,839)		(11,839)		(15,410)
Derivatives Not Designated as Hedging Instruments \| Foreign exchange contracts \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	(5)		(5)		$ (17)
Foreign currency exchange (gain) loss \| Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(4,012)	2,213	512	13,590
Foreign currency exchange (gain) loss \| Derivatives Not Designated as Hedging Instruments \| Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	20	52	13	45
Cost of products sold \| Designated as Hedging Instrument \| Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	49	42	57	(58)
Cost of products sold \| Designated as Hedging Instrument \| Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	207	(1,741)	(1,519)	(374)
Cost of products sold \| Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(3,218)	3,944	2,386	13,591
Interest Expense [Member] \| Designated as Hedging Instrument \| Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 0	$ 159	$ 359	$ 407