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Consolidated interest coverage ratio.

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Debt instrument default interest rate percentage.

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Exchange offer settled date.

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Line of credit facility floor rate

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Net leverage ratio.

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Percentage of outstanding bearer shares.

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Transaction costs incurred in business combination.

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Date when the business acquisition agreement was executed, in YYYY-MM-DD format.

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No definition available.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Aggregate number of common shares reserved for future issuance.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Date the declared dividend will be paid, in YYYY-MM-DD format.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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Average amount borrowed under the credit facility during the period.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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Subsequent Events - Additional Information (Detail)					1 Months Ended		3 Months Ended		6 Months Ended
Subsequent Events - Additional Information (Detail)	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