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Cash and Cash Equivalents
9 Months Ended
Sep. 30, 2019
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents Cash and Cash Equivalents

Cash equivalents are short-term, highly liquid investments with insignificant interest rate risk and original maturities of three months or less at acquisition. At September 30, 2019, restricted and designated cash and investments totaled $18.8 million, of which $2.0 million was included in other current assets and $16.8 million was included in other non-current assets in the consolidated balance sheet. Restricted and designated cash and investments totaled $21.5 million at December 31, 2018, of which $3.1 million was included in other current assets and $18.4 million was included in other non-current assets in the consolidated balance sheet.  The restricted funds represent deposits required by state agencies for self-insurance purposes and designated funds that are earmarked for a specific purpose and not for general business use.