Foreign Currency Exchange Contracts and Hedging (Narrative) (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Aug. 10, 2015 USD ($) counterparty	Jun. 30, 2015 USD ($) counterparty	Jun. 30, 2014 USD ($)	Mar. 31, 2015 USD ($) counterparty
Foreign currency exchange contracts and hedging
Number of counterparties in derivative contracts | counterparty		5		4
Remaining maturity of foreign currency derivatives		9 months
Derivatives designated as cash flow hedges | Foreign currency exchange contracts
Summary of the effect of derivative instruments on the consolidated statements of income
Amount of loss recognized in OCI on derivative (effective portion)		$ (2,353)	$ (823)
Amount of gain (loss) reclassified from accumulated OCI into income (effective portion)		0	(13)
Amount of gain (loss) excluded from effectiveness testing		52	(35)
Designated as Hedging Instrument | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Derivative notional amount		77,000		$ 46,000
Non-designated derivatives | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Derivative notional amount		42,000
Summary of the effect of derivative instruments on the consolidated statements of income
Amount of gain (loss) recognized in income on derivatives		$ 865	$ (81)
Subsequent Event | Non-designated derivatives | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Derivative notional amount	$ 71,000
Number of counterparties in derivative contracts | counterparty	6
Remaining maturity of foreign currency derivatives	4 months