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Summary of Significant Accounting Policies - Contract Revenue (Details) - Contract revenue - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue Recognition
Contract assets	$ 0.0	$ 0.4
Contract liabilities	0.0	$ 2.5
Wholly- or partially-unsatisfied performance obligations	$ 0.0

- 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.

+ References + Details