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Investments, Forward Contracts and Fair Value Measurements - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended
	Oct. 30, 2018	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018	Jun. 30, 2018
Investments, Forward Contracts and Fair Value Measurements
Term of maturities of securities classified as current assets included in short-term investments				12 months
Total debt available-for-sale securities		$ 26,200,000		$ 26,200,000		$ 189,600,000
Other-than-temporary impairment loss		0	$ 0	0	$ 0
Foreign Currency Forward Contracts
Fair value of contingent consideration		38,800,000		38,800,000		0
Earn-out liability				$ 2,600,000
Asset acquisition, earn-out liability period				3 years
Not designated \| Foreign exchange forward contracts
Foreign Currency Forward Contracts
Derivative asset, fair value		4,100,000		$ 4,100,000		2,700,000
Derivative liability, fair value		2,400,000		$ 2,400,000		11,700,000
Derivative, term of contract				120 days
Gains (losses) on derivatives		1,700,000	$ 3,900,000	$ (4,100,000)	$ 8,100,000
Not designated \| Foreign exchange forward contracts \| Held to purchase
Foreign Currency Forward Contracts
Notional amount of forward contracts		130,800,000		130,800,000		167,500,000
Not designated \| Foreign exchange forward contracts \| Held to sell
Foreign Currency Forward Contracts
Notional amount of forward contracts		31,700,000		31,700,000		28,600,000
Short-term investments
Investments, Forward Contracts and Fair Value Measurements
Deferred compensation plan assets		1,500,000		1,500,000		1,600,000
Short-term investments
Investments, Forward Contracts and Fair Value Measurements
Total debt available-for-sale securities		25,600,000		25,600,000		167,700,000
Other non-current assets
Investments, Forward Contracts and Fair Value Measurements
Total debt available-for-sale securities		600,000		600,000		700,000
Debt securities \| Short-term investments
Investments, Forward Contracts and Fair Value Measurements
Deferred compensation plan assets		400,000		400,000		400,000
Money market instruments and funds \| Short-term investments
Investments, Forward Contracts and Fair Value Measurements
Deferred compensation plan assets		400,000		400,000		300,000
Equity securities \| Short-term investments
Investments, Forward Contracts and Fair Value Measurements
Deferred compensation plan assets		700,000		700,000		900,000
Cash equivalents
Investments, Forward Contracts and Fair Value Measurements
Total debt available-for-sale securities						$ 21,200,000
RPC Photonics, Inc.
Foreign Currency Forward Contracts
Performance based earn-out payments (up to)	$ 53,000,000
Earn-out period	4 years
Fair value of contingent consideration	$ 36,200,000	$ 36,200,000		$ 36,200,000