Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions - Narrative (Details) - USD ($) $ in Millions			6 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Millions	Oct. 30, 2018	Mar. 15, 2018	Dec. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Measurement period adjustment - increase in goodwill			$ 6.3
RPC Photonics, Inc.
Business Acquisition [Line Items]
Performance based earn-out payments (up to)	$ 53.0
Earn-out period	4 years
Escrow payments	$ 3.5
Cash consideration paid at closing	$ 33.4
RPC Photonics, Inc. \| Minimum
Business Acquisition [Line Items]
Estimated useful life	6 years
RPC Photonics, Inc. \| Maximum
Business Acquisition [Line Items]
Estimated useful life	7 years
AW business
Business Acquisition [Line Items]
Cash consideration paid at closing		$ 469.8
Measurement period adjustment - increase in other liabilities			$ 6.3
Measurement period adjustment - increase in goodwill				$ 6.3
AW business \| Minimum
Business Acquisition [Line Items]
Estimated useful life		3 years
AW business \| Maximum
Business Acquisition [Line Items]
Estimated useful life		6 years
Customer Backlog \| RPC Photonics, Inc.
Business Acquisition [Line Items]
Estimated useful life	1 year
Customer Backlog \| AW business
Business Acquisition [Line Items]
Estimated useful life		1 year