Cash, Cash Equivalents and Restricted Cash - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 28, 2026	Dec. 28, 2025
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 97.5	$ 128.2
Money market funds
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	12.1	2.0
Other depository accounts, including IHOP advertising and gift card
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 85.4	$ 126.2

Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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