Intangible Assets (Changes in Carrying Amount) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Intangible Assets [Roll Forward]
March 31, 2017			$ 68,820
Intangibles amortization	$ (2,109)	$ (2,304)	(4,339)	$ (4,755)
Foreign currency translation adjustment			29
Intangible asset impairment loss			(1,426)
September 30, 2017	63,084		63,084
Trademarks
Intangible Assets [Roll Forward]
March 31, 2017			27,197
Intangibles amortization			0
Foreign currency translation adjustment			0
Intangible asset impairment loss			(1,426)
September 30, 2017	25,771		25,771
Customer relationships
Intangible Assets [Roll Forward]
March 31, 2017			41,623
Intangibles amortization			(4,339)
Foreign currency translation adjustment			29
Intangible asset impairment loss			0
September 30, 2017	$ 37,313		$ 37,313