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Pending Merger - Additional Information (Detail) - USD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 04, 2019 | Dec. 14, 2018 | Nov. 08, 2018 | Jun. 30, 2019
Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Letter of credit sub-facility maximum borrowing capacity | $ 25,000,000.0 |  |  |
Swing loan sub-facility maximum initial borrowing capacity | 20,000,000.0 |  |  |
Finisar Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount | 575,000,000.0 |  |  |
Senior Secured Credit Facility | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount | 1,625,000,000 |  |  |
Term A Loan Facility | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount | $ 1,175,000,000 |  |  |
Debt instrument term | 5 years |  |  |
New Senior Credit Facilities | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount | $ 450,000,000.0 |  |  |
Debt instrument term | 5 years |  |  |
Credit facility, outstanding amount | $ 0 |  |  |
Term B Loan Facility | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount | $ 720,000,000.0 |  |  |
Finisar Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of aggregate consideration in cash |  |  | 60.00% |
Percentage of aggregate consideration in stock |  |  | 40.00% |
Amount per share to be received |  |  | $ 46.88 |
Finisar Corporation | Senior Secured Credit Facility | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Commitment fee percentage |  | 100.00% |  |
Finisar Corporation | Restricted Stock Units (RSUs) |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Amount per share to be received |  |  | $ 15.60 |
Number of shares to be received |  |  | 0.2218 |
Finisar Corporation | 2005 Stock Incentive Plan |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Amount per share to be received |  |  | $ 26.00 |
Description of stock transaction |  |  |  | At the effective time of the Merger (the “Effective Time”), each option granted pursuant to Finisar’s 2005 Stock Incentive Plan, as such plan has been further amended and restated (each, a “Finisar Stock Option”), or portion thereof, that is outstanding and unexercised as of immediately prior to the Effective Time (whether vested or unvested) will be cancelled, terminated and converted into the right to receive an amount of Mixed Election Consideration that would be payable to a holder of such number of shares of Finisar Common Stock equal to the quotient of (i) the product of (a) the excess, if any, of $26.00 over the exercise price per share of such Finisar Stock Option multiplied by (b) the number of shares of Finisar Common Stock subject to such Finisar Stock Option, divided by (ii) $26.00.
Maximum | Finisar Corporation | Senior Secured Credit Facility | Bank of America, N.A. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate principal amount |  | $ 2,425,000,000 |  |
Cash Election Consideration | Finisar Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Amount per share to be received |  |  | $ 26 |
Stock Election Consideration | Finisar Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of shares to be received |  |  | 0.5546 |
Mixed Election Consideration | Finisar Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Amount per share to be received |  |  | $ 15.60 |
Number of shares to be received |  |  | 0.2218 |

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