FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]
Par value of available-for-sale debt securities	$ 45,500	$ 45,000
Funds held for clients	152,862	207,037
Certified Deposits and Other Depository Assets
Debt Securities, Available-for-sale [Line Items]
Funds held for clients	$ 100	$ 500

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

CBIZ, Inc. 10-Q