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Retirement Benefits
 12 Months Ended
Dec. 30, 2023
Retirement Benefits [Abstract]  
Retirement Benefits Retirement Benefits
The Corporation has defined contribution retirement plans covering substantially all members. The Corporation’s contribution to the plans is based on member eligible earnings and/or member contributions. A portion of the contribution is also based on results of operations, and a portion is contributed in the form of common stock of the Corporation. Cash contributions by the Corporation are primarily made each payroll period, concurrent with member contributions. Stock contributions to member retirement plans are typically made in the following year.
The following table includes the Corporation’s contributions related to the respective annual period:
202320222021
Stock contribution$3.9 $5.1 $7.1 
Cash contribution25.9 25.1 17.8 
Total annual contribution$29.8 $30.1 $25.0 

In 2023, the Corporation made a cash contribution of $4.8 million to the retirement plans of Kimball International members, related to the period of July 2022 through June 2023.

As discussed in "Note 9. Fair Value Measurements of Financial Instruments," the Corporation assumed a SERP for certain executive members of Kimball International. This plan enables members to defer their cash compensation on a pre-tax basis in excess of IRS limitations. The Corporation made an immaterial contribution to the SERP in 2023.