Long-Term Debt Outstanding Revolving Loans (Details) - Revolving credit facility [Member] € in Thousands, £ in Thousands, CAD in Thousands, $ in Thousands	Mar. 31, 2016 EUR (€)	Mar. 31, 2016 GBP (£)	Mar. 31, 2016 CAD	Mar. 31, 2016 USD ($)
British pound (swingline loan) [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Gross		£ 1,400		$ 2,015
Debt Instrument, Interest Rate, Stated Percentage	2.48%	2.48%	2.48%	2.48%
British pound revolving loan [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Gross		£ 18,000		$ 25,907
Debt Instrument, Interest Rate, Stated Percentage	2.51%	2.51%	2.51%	2.51%
Canadian dollar revolving loan [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Gross			CAD 23,000	$ 17,724
Debt Instrument, Interest Rate, Stated Percentage	2.88%	2.88%	2.88%	2.88%
Euro revolving loan [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Gross	€ 10,800			$ 12,292
Debt Instrument, Interest Rate, Stated Percentage	2.00%	2.00%	2.00%	2.00%