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Acquisitions - Pro Forma Results of Acquisitions (Detail) - Counsyl Inc [Member] - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Business Acquisition [Line Items] |  |
Revenue | $ 186.3 | $ 212.5
Income (loss) from operations | (20.9) | 11.5
Net income (loss) | $ (20.6) | $ 8.6
Earnings (loss) per share, basic | $ (0.28) | $ 0.11
Earnings (loss) per share, diluted | $ (0.28) | $ 0.11

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- Definition Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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