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Description of Business and Summary of Significant Accounting Policies - Merger with Orbotech, Ltd (Details) $ / shares in Units, $ in Thousands |  | 12 Months Ended
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Feb. 20, 2019 USD ($) $ / shares shares | Jun. 30, 2019 segment
Business Acquisition |  |
Number of reportable segments | segment |  | 4
Orbotech |  |
Business Acquisition |  |
Merger agreement, share price (in dollars per share) | $ / shares | $ 38.86 |
Total purchase consideration | $ | $ 3,255,558 |
Merger agreement, entity shares issues per acquiree share (in shares) | shares | 0.25 |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6578-128477 + Details
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