Debt - Schedule of Contractual Interest Expense and Amortization of Discount on Notes (Detail) - Purchase Agreement [Member] - 0.50% Convertible Senior Notes due 2022 [Member] - Wells Fargo Securities, LLC [Member] $ in Millions	9 Months Ended
	Mar. 27, 2021 USD ($)
Debt Instrument [Line Items]
Interest expense	$ 2.0
Amortization of discount and debt issuance costs	14.3
Total interest	$ 16.3