Debt - Additional Information (Detail) - USD ($)		3 Months Ended
	Jun. 27, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 28, 2018	Jun. 30, 2018	Mar. 31, 2018
Debt Instrument [Line Items]
Long-term debt		$ 240,000,000			$ 195,000,000
Interest expense		2,259,000	$ 3,000
Amount of outstanding letter of credit						$ 2,510,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 750,000,000
Debt instrument term	5 years
Proceeds from lines of credit		45,000,000
Long-term debt		240,000,000
Interest expense		2,259,000
Term Loan
Debt Instrument [Line Items]
Debt issuance costs		$ 6,722,000