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Debt and Credit Arrangements - Restricted Cash and Fair Value Disclosures (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument |  |
Restricted cash | $ 2.5 | $ 1,941.7
Term Loan Due 2030 | Revolving Credit Facility |  |
Debt Instrument |  |
Debt instrument percentage over par value |  | 100.00%
Convertible Debt | Convertible Notes, due 2024 |  |
Debt Instrument |  |
Debt instrument percentage over par value | 218.00% | 201.00%
Unsecured Debt | Senior Unsecured Notes Due 2031 |  |
Debt Instrument |  |
Debt instrument percentage over par value | 106.00% | 103.00%
Secured Debt | Senior Secured Notes Due 2030 |  |
Debt Instrument |  |
Debt instrument percentage over par value | 103.00% | 101.00%

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- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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