Business Combinations - Intangible Assets (Details) - Ultratech $ in Thousands	May 26, 2017 USD ($)
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	$ 346,940
In-process R&D
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	43,340
Technology
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	$ 158,390
Useful life	9 years
Customer relationships
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	$ 116,710
Useful life	12 years
Backlog
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	$ 3,080
Useful life	6 months
Trademarks and tradenames
Intangible assets acquired and the estimated weighted-average useful life
Intangible assets acquired, amount	$ 25,420
Useful life	7 years