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v3.22.2

Subsequent Events - Additional Information (Detail) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 05, 2022 USD ($) | Aug. 03, 2022 $ / shares | Jul. 15, 2022 USD ($) $ / shares shares | Aug. 30, 2021 $ / shares shares | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2022 USD ($) $ / shares shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) $ / shares shares | Jun. 30, 2021 USD ($) | Sep. 01, 2022 USD ($) | Jul. 22, 2022 shares | Jul. 18, 2022 USD ($) | Dec. 31, 2021 $ / shares shares
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value | $ / shares |  |  |  | $ 0.01 |  |  | $ 0.01 |  | $ 0.01 |  |  |  |  | $ 0.01
Common stock, shares outstanding | shares |  |  |  |  |  |  | 49,126,000 |  | 49,126,000 |  |  |  |  | 49,063,000
Options available for issuance under stockholders-approved equity plan | shares |  |  |  |  |  |  | 3,500,000 |  | 3,500,000 |  |  |  |  |
Scenario Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend payable, aggregate amount | $ |  |  |  |  |  |  |  |  |  |  | $ 7,000,000.0 |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend declaration date |  | Aug. 03, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends per share declared | $ / shares |  | $ 0.09 |  |  |  |  |  |  |  |  |  |  |  |
Dividend record date |  | Aug. 18, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Dividend payment date |  | Sep. 01, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Exchange offer settled date |  |  | Jul. 15, 2022 |  |  |  |  |  |  |  |  |  |  |
Issuance of shares of common stock | shares |  |  | 27,994,595 |  |  |  |  |  |  |  |  |  |  |
Debt instrument default interest rate percentage | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, floor rate | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | EURIBOR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, floor rate | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] | Subsequent Event [Member] | Base Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] | Subsequent Event [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 1.40% |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] | Subsequent Event [Member] | EURIBOR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options available for issuance under stockholders-approved equity plan | shares |  |  |  |  |  |  | 2,100,000 |  | 2,100,000 |  |  |  |  |
Maximum [Member] | Subsequent Event [Member] | Base Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 1.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] | Subsequent Event [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 2.15% |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] | Subsequent Event [Member] | EURIBOR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |
ADVA Optical Networking SE, [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options available for issuance under stockholders-approved equity plan | shares |  |  |  |  |  |  |  |  |  |  |  | 2,000,000.0 |  |
Acorn HoldCo, Inc., [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Date of Acquisition Agreement |  |  |  | Aug. 30, 2021 |  |  |  |  |  |  |  |  |  |
Common stock, par value | $ / shares |  |  |  | $ 0.01 |  |  |  |  |  |  |  |  |  |
Acorn HoldCo, Inc., [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding | shares |  |  | 33,957,538 |  |  |  |  |  |  |  |  |  |  |
Percentage of outstanding bearer shares |  |  | 65.43% |  |  |  |  |  |  |  |  |  |  |
Closing share price | $ / shares |  |  | $ 20.20 |  |  |  |  |  |  |  |  |  |  |
Acorn HoldCo, Inc., [Member] | Selling General and Administrative Expense and Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transaction costs incurred | $ |  |  |  |  |  |  | $ 900,000 | $ 2,400,000 | $ 1,800,000 | $ 3,400,000 |  |  |  |
Acorn HoldCo, Inc., [Member] | ADVA Optical Networking SE, [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock provided in exchange for common stock | $ |  |  | $ 565,500,000 |  |  |  |  |  |  |  |  |  |  |
Acorn HoldCo, Inc., [Member] | ADVA Optical Networking SE, [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issuable for each share of acquired entity | shares |  |  |  | 0.8244 |  |  |  |  |  |  |  |  |  |
Wells Fargo Credit Agreement [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit agreement maturity period | Jul. 14, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |
Net leverage ratio |  |  |  |  | 2.75 | 3.25 |  |  |  |  |  |  |  |
Wells Fargo Credit Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee percentage | 0.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated interest coverage ratio | 300.00 |  |  |  |  |  |  |  |  |  |  |  |  |
Wells Fargo Credit Agreement [Member] | Subsequent Event [Member] | Federal Reserve Bank Advances [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Wells Fargo Credit Agreement [Member] | Subsequent Event [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest over screen rate | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Wells Fargo Credit Agreement [Member] | Acorn HoldCo, Inc., [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
New secured revolving credit facility amount | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000 |
Wells Fargo Credit Agreement [Member] | Acorn HoldCo, Inc., [Member] | Maximum [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit agreement current borrowing capacity | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |
Revolving Credit Facility [Member] | Acorn HoldCo, Inc., [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit agreement current borrowing capacity | $ | $ 50,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of Credit [Member] | Acorn HoldCo, Inc., [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, average outstanding amount | $ | $ 17,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |

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