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Supplemental Balance Sheet Information - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Cash and cash equivalents	$ 18.8	$ 22.9	$ 26.0
Restricted cash included in prepaid expenses and other current assets	22.1
Total cash, cash equivalents, and restricted cash	$ 40.9	$ 22.9	$ 26.0	$ 14.8

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