Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Total (gain) loss included in net loss	$ 1,142,000	$ (1,114,000)
Forward Foreign Currency Exchange Contracts [Member]
Other liabilities [Abstract]
Net gain on forward foreign currency exchange contracts	$ 178,000	233,000
Supplier Warrant [Member]
Fair value assumptions of warrants [Abstract]
Risk-free interest rate (in hundredths)	0.73%
Expected life in years	2 years 3 months
Expected volatility (in hundredths)	45.70%
Dividend yield (in hundredths)	0.00%
Probability (in hundredths)	0.00%
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Beginning balance	$ 10,506,000	10,047,000
Newly issued	0	0
Total (gain) loss included in net loss	1,142,000	(1,114,000)
Exercises/settlements	0	0
Net transfers in (out) of Level 3	0	0
Ending balance	$ 11,648,000	8,933,000
Contingent Consideration [Member]
Fair value assumptions of warrants [Abstract]
Expected volatility (in hundredths)	35.00%
Probability (in hundredths)	90.00%
Counter party present value factor (in hundredths)	4.52%
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Beginning balance	$ 0	0
Newly issued	1,320,000	0
Total (gain) loss included in net loss	0	0
Exercises/settlements	0	0
Net transfers in (out) of Level 3	0	0
Ending balance	$ 1,320,000	$ 0
Contingent Consideration [Member] | Minimum [Member]
Fair value assumptions of warrants [Abstract]
Risk-free interest rate (in hundredths)	0.23%
Contingent Consideration [Member] | Maximum [Member]
Fair value assumptions of warrants [Abstract]
Risk-free interest rate (in hundredths)	1.28%
Recurring [Member]
Short-term investments [Abstract]
Mutual funds	$ 878,000		$ 699,000
Accrued liabilities [Abstract]
Contingent consideration	393,000		0
Other current liabilities [Abstract]
Deferred compensation	878,000		699,000
Forward foreign currency exchange contracts	1,015,000		1,193,000
Other liabilities [Abstract]
Warrant liability	11,648,000		10,506,000
Contingent consideration	927,000		0
Recurring [Member] | Level 1 [Member]
Short-term investments [Abstract]
Mutual funds	878,000		699,000
Accrued liabilities [Abstract]
Contingent consideration	0		0
Other current liabilities [Abstract]
Deferred compensation	878,000		699,000
Forward foreign currency exchange contracts	0		0
Other liabilities [Abstract]
Warrant liability	0		0
Contingent consideration	0		0
Recurring [Member] | Level 2 [Member]
Short-term investments [Abstract]
Mutual funds	0		0
Accrued liabilities [Abstract]
Contingent consideration	0		0
Other current liabilities [Abstract]
Deferred compensation	0		0
Forward foreign currency exchange contracts	1,015,000		1,193,000
Other liabilities [Abstract]
Warrant liability	0		0
Contingent consideration	0		0
Recurring [Member] | Level 3 [Member]
Short-term investments [Abstract]
Mutual funds	0		0
Accrued liabilities [Abstract]
Contingent consideration	393,000		0
Other current liabilities [Abstract]
Deferred compensation	0		0
Forward foreign currency exchange contracts	0		0
Other liabilities [Abstract]
Warrant liability	11,648,000		10,506,000
Contingent consideration	$ 927,000		$ 0