Derivative Instruments (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2018 USD ($) counterparty	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) counterparty	Dec. 31, 2017 USD ($)	Feb. 01, 2019 USD ($)	Mar. 31, 2018 USD ($)
Summary of the effect of derivative instruments on the consolidated statements of income
Gain (loss) reclassification from AOCI to income, estimate of time to transfer			6 months
Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Number of counterparties in derivative contracts | counterparty	3		3
Maximum remaining maturity of foreign currency derivatives			3 months
Designated Derivative Contracts
Foreign currency exchange contracts and hedging
Fair value recorded in other current assets	$ 1,850,000		$ 1,850,000			$ 950,000
Fair value recorded in other accrued expenses						(143,000)
Summary of the effect of derivative instruments on the consolidated statements of income
Income tax expense (benefit) on derivatives	(999,000)	$ 1,513,000	66,000	$ (1,312,000)
Designated Derivative Contracts | Derivatives designated as cash flow hedges
Summary of the effect of derivative instruments on the consolidated statements of income
Amount of gain (loss) on derivative instruments (effective portion) recognized in other comprehensive (loss) income	998,000	108,000	8,356,000	(9,682,000)
Amount of gain (loss) reclassified from accumulated other comprehensive (loss) income into net sales (effective portion)	5,127,000	(3,914,000)	7,293,000	(6,197,000)
Amount of gain excluded from effectiveness testing recognized in SG&A expenses	363,000	273,000	1,843,000	1,045,000
Non-Designated Derivative Contracts
Foreign currency exchange contracts and hedging
Fair value recorded in other current assets	94,000		94,000
Fair value recorded in other accrued expenses	(5,000)		(5,000)			$ (10,000)
Non-Designated Derivative Contracts | Foreign currency exchange contracts
Summary of the effect of derivative instruments on the consolidated statements of income
Amount of gain (loss) on derivative instruments recognized in SG&A expenses	504,000	$ 211,000	1,241,000	$ (2,455,000)
Subsequent Event | Designated Derivative Contracts | Derivatives designated as cash flow hedges | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Notional value					$ 0
Subsequent Event | Non-Designated Derivative Contracts | Derivatives designated as cash flow hedges | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Notional value					$ 0
Fair Value, Measurements, Recurring
Foreign currency exchange contracts and hedging
Fair value recorded in other current assets	1,944,000		1,944,000
Fair value recorded in other accrued expenses	(5,000)		(5,000)
Fair Value, Measurements, Recurring | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Notional value	27,050,000		27,050,000
Fair Value, Measurements, Recurring | Designated Derivative Contracts | Derivatives designated as cash flow hedges
Foreign currency exchange contracts and hedging
Fair value recorded in other current assets	1,850,000		1,850,000
Fair value recorded in other accrued expenses	0		0
Fair Value, Measurements, Recurring | Designated Derivative Contracts | Derivatives designated as cash flow hedges | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Notional value	19,156,000		19,156,000
Fair Value, Measurements, Recurring | Non-Designated Derivative Contracts
Foreign currency exchange contracts and hedging
Fair value recorded in other current assets	94,000		94,000
Fair value recorded in other accrued expenses	(5,000)		(5,000)
Fair Value, Measurements, Recurring | Non-Designated Derivative Contracts | Foreign currency exchange contracts
Foreign currency exchange contracts and hedging
Notional value	$ 7,894,000		$ 7,894,000