Number of market based PSU awards converted to time based RSU awards

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- Definition

Share based compensation arrangement by share based payment award earn out percentage.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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Stock-Based Compensation (PSUs, RSUs and Restricted Stock) - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
	Jul. 15, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 22, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share granted		1,509
Options available for issuance under shareholders-approved equity plan		1,100
Executive Officers and Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share granted			300
Adtran Networks [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of market based PSU awards converted to time based RSU awards	300
Unrecognized compensation expense related to other than options		$ 24
Recognition period of non-vested compensation cost		1 year 4 months 24 days
Options available for issuance under shareholders-approved equity plan					2,100
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options available for issuance under shareholders-approved equity plan		2,300
Performance Stock Units (PSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period			3 years
Share granted				300
Unrecognized compensation expense related to other than options		$ 10,500
Recognition period of non-vested compensation cost		2 years
Performance Stock Units (PSUs) [Member] \| Executive Officers and Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period			1 year	2 years
Share granted		900
Performance Stock Units (PSUs) [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of performance stock units granted			0.00%
Performance Stock Units (PSUs) [Member] \| Minimum [Member] \| Executive Officers and Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of performance stock units granted		0.00%	0.00%	0.00%
Performance Stock Units (PSUs) [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of performance stock units granted			150.00%
Performance Stock Units (PSUs) [Member] \| Maximum [Member] \| Executive Officers and Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of performance stock units granted			142.80%	142.80%
PSUs, RSUs and Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		4 years
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		1 year
Market-Based PSUs, RSUs and Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to other than options		$ 15,500
Recognition period of non-vested compensation cost		2 years 1 month 6 days
Time-Based RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to other than options			$ 17,800
Unrecognized compensation expense related to other than options		$ 8,100
Recognition period of non-vested compensation cost		1 year 9 months 18 days