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Acquisitions - Allocation of Purchase Price of Assets Acquired and Liabilities Assumed (Detail)) - USD ($) $ in Thousands | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Jun. 30, 2018
Previously Reported/As Adjusted |  |  |  |
Goodwill | $ 1,239,009 |  | $ 319,778 | $ 270,678
Finisar Corporation |  |  |  |
Previously Reported/As Adjusted |  |  |  |
Cash and cash equivalents | 842,477 | $ 842,764 |  |
Accounts receivable | 259,341 | 260,864 |  |
Inventories | 439,708 | 437,867 |  |
Property, plant & equipment | 657,713 | 748,858 |  |
Intangible assets | 665,200 | 827,689 |  |
Other assets | 76,468 | 82,624 |  |
Deferred tax assets | 16,267 | 0 |  |
Accounts payable | (123,707) | (123,707) |  |
Other accrued liabilities | (202,116) | (148,425) |  |
Deferred tax liabilities | (67,040) | (197,809) |  |
Debt | (575,000) | (575,000) |  |
Goodwill | 919,192 | 759,239 |  |
Total Purchase Price | 2,908,503 | $ 2,914,964 |  |
Measurement Period Adjustments |  |  |  |
Accounts receivable | (1,523) |  |  |
Inventories | 1,841 |  |  |
Property, plant, and equipment | (91,145) |  |  |
Intangibles assets | (162,489) |  |  |
Other assets | (6,443) |  |  |
Deferred tax assets | 16,267 |  |  |
Other accrued liabilities | (9,727) |  |  |
Deferred tax liabilities | 86,805 |  |  |
Goodwill | 159,953 |  |  |
Total Purchase Price | (6,461) |  |  |
Right-of-use asset decrease | 16,000 |  |  |
Reduction to lease liability | 16,000 |  |  |
Uncertain tax positions | (11,500) |  |  |
Warranty reserve | (13,400) |  |  |
Other current liabilities | 5,500 |  |  |
Other liabilities, litigation and related insurance recovery | 6,800 |  |  |
Finisar Corporation | Reclassification, Other |  |  |  |
Previously Reported/As Adjusted |  |  |  |
Cash and cash equivalents | (287) |  |  |
Other assets | 287 |  |  |
Other accrued liabilities | (43,964) |  |  |
Deferred tax liabilities | $ 43,964 |  |  |

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