Derivative Instruments (Derivative instruments in the condensed consolidated balance sheet) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Derivatives Designated as Hedging Instruments | Foreign Exchange Contract [Member] | Prepaid expenses and other
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$ 161	$ 200
Derivatives Designated as Hedging Instruments | Foreign Exchange Contract [Member] | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	123	(420)
Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] | Prepaid expenses and other
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	1,394	0
Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	1,808	1,129
Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	(1,082)
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contract [Member] | Prepaid expenses and other
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	2	96
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contract [Member] | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 22	$ 7