Business Combinations - Additional Information (Detail) $ in Millions		9 Months Ended	12 Months Ended
	Oct. 08, 2024 USD ($)	Jun. 28, 2025 USD ($)	Jun. 28, 2025 USD ($) Acquisition	Jun. 29, 2024 USD ($) Acquisition	Jul. 01, 2023 USD ($) Acquisition
Business Acquisition [Line Items]
Number of acquisitions | Acquisition			4	2	1
Intangible assets estimated useful life			11 years 7 months 6 days
Goodwill		$ 3,480.1	$ 3,480.1	$ 2,418.3	$ 2,301.0
Cash payment for acquisition			2,596.4	307.7	63.8
Net sales			63,298.9	58,281.2	57,254.7
Net loss			$ 340.2	435.9	397.2
Acqusition costs included in pro-forma net income				75.6
Minimum [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			2 years
Minimum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			4 years
Minimum [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			4 years
Maximum [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			12 years
Maximum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			12 years
Maximum [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			12 years
Cheney Brothers [Member]
Business Acquisition [Line Items]
Total purchase price	$ 2,000.0
Cash portion of the acquisition	1,977.1
Deferred consideration payable to seller	$ 32.4
Period for deferred consideration	5 years
Deferred consideration payable to the seller		29.4	$ 29.4
Net sales		2,700.0
Net loss		11.2
Business Acquisition Cost [Member]
Business Acquisition [Line Items]
Number of acquisitions | Acquisition			4
Goodwill		1,066.8	$ 1,066.8
Cash payment for acquisition			2,600.0	$ 307.7	$ 63.8
Business Acquisition Cost [Member] | Cheney Brothers [Member]
Business Acquisition [Line Items]
Goodwill		$ 750.9	$ 750.9