Property Plant, and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Property, Plant and Equipment [Line Items]
Depreciation expense, including amortization of assets under capital lease	$ 2.8	$ 2.0	$ 5.3	$ 3.9
Minimum [Member] | Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			3 years
Minimum [Member] | Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			8 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			3 years
Maximum [Member] | Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			10 years
Maximum [Member] | Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			25 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment			8 years