GOODWILL & OTHER INTANGIBLE ASSETS - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($) segment	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Goodwill [Line Items]
Number of operating segments \| segment		2
Number of segments \| segment		2
Goodwill	$ 188,423	$ 188,423	$ 188,407	$ 188,409	$ 188,434
Goodwill and intangible asset impairment	0	0
Transportation Solutions
Goodwill [Line Items]
Goodwill	120,494	120,494	120,484	120,486	120,502
Parts & Services
Goodwill [Line Items]
Goodwill	$ 67,929	$ 67,929	$ 67,923	$ 67,923	$ 67,932

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

- 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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+ Details

WABASH NATIONAL Corp 10-Q