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Significant Accounting Policies - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash	$ 0.2	$ 1.0
Number of operating segments | segment	2
Number of reportable segments | segment	2
Goodwill	$ 8.7	8.7
Grace Pacific
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Ownership interest percentage (in percent)	70.00%
Tax-Deferred Sale Proceeds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash	$ 0.0	$ 0.8

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