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Nature of Operations and Significant Accounting Policies - Cash and Cash Equivalents, Investments (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Cash and Cash Equivalents |  |
Maximum maturity period when purchased for investments to be included in cash and cash equivalents | 3 months |
Investments |  |
Real estate held for sale | $ 230.6 | $ 240.6

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- Definition Amount of investment in land and building held for sale. Excludes real estate considered inventory. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 + Details
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