Revenues - Additional information (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Jun. 29, 2025	Mar. 30, 2025	Dec. 31, 2024	Sep. 29, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Contract with customer, deferred revenues	$ 46,030	$ 45,606	$ 43,443	$ 40,128	$ 29,133	$ 29,613	$ 29,950	$ 31,062
Contract with customer, deferred revenues, current	35,400
Contract with customer, deferred revenues, noncurrent	10,600
Service-Type Warranties
Disaggregation of Revenue [Line Items]
Contract with customer, deferred revenues	15,700
Contract with customer, deferred revenues, current	7,700
Contract with customer, deferred revenues, noncurrent	$ 8,000

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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+ Details

BELDEN INC. 10-Q