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Debt (Senior Unsecured Notes and Credit Agreement) (Details) $ in Millions | 5 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Jul. 18, 2023 USD ($) | Dec. 31, 2022 USD ($)
Debt Instrument [Line Items] |  |  |  |
Letters of credit, amount outstanding | $ 0.8 | $ 0.8 |  |
Senior Notes at Three Point Five Percent Due 2024 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450.0 | $ 450.0 |  | $ 450.0
Percentage interest on debt instrument | 3.50% | 3.50% |  |
Debt instrument, maturity date |  | Nov. 15, 2024 |  |
Senior Notes at Four Point Five Percent Due 2025 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450.0 | $ 450.0 |  | 450.0
Percentage interest on debt instrument | 4.50% | 4.50% |  |
Debt instrument, maturity date |  | Oct. 01, 2025 |  |
Senior Notes at Three Point Eight Percent Due 2027 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 300.0 | $ 300.0 |  | 300.0
Percentage interest on debt instrument | 3.80% | 3.80% |  |
Debt instrument, maturity date |  | Nov. 15, 2027 |  |
Senior Notes at One Point Nine Five Percent Due 2028 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 400.0 | $ 400.0 |  | 400.0
Percentage interest on debt instrument | 1.95% | 1.95% |  |
Debt instrument, maturity date |  | Aug. 01, 2028 |  |
Senior Notes at Four Point Seven Five Percent Due 2030 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 500.0 | $ 500.0 |  | 500.0
Percentage interest on debt instrument | 4.75% | 4.75% |  |
Debt instrument, maturity date |  | Jun. 01, 2030 |  |
Senior Notes at Two Point Four Percent Due 2031 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450.0 | $ 450.0 |  | 450.0
Percentage interest on debt instrument | 2.40% | 2.40% |  |
Debt instrument, maturity date |  | Aug. 01, 2031 |  |
Senior Notes at Three Point Eight Five Percent Due 2032 [Member] | Senior Notes [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 700.0 | $ 700.0 |  | 700.0
Percentage interest on debt instrument | 3.85% | 3.85% |  |
Debt instrument, maturity date |  | Mar. 01, 2032 |  |
Revolving Credit Facility Due 2025 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity under revolving credit facility |  |  | $ 1,800.0 |
Debt Instrument Covenant Terms Maximum Leverage Ratio |  |  | 3.75 |
Revolving Credit Facility Due 2025 [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility, amount outstanding |  |  |  | $ 0.0
Revolving Credit Facility Due 2028 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity under revolving credit facility | $ 1,900.0 | $ 1,900.0 |  |
Debt Instrument Covenant Terms Maximum Leverage Ratio | 4.25 | 4.25 |  |
Additional borrowing capacity under accordion feature of revolving credit facility | $ 500.0 | $ 500.0 |  |
Revolving credit facilities letter of credit sublimit | 200.0 | 200.0 |  |
Additional borrowing capacity under revolving credit facility | 1,900.0 | 1,900.0 |  |
Revolving Credit Facility Due 2028 [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility, amount outstanding | $ 0.0 | $ 0.0 |  |
Revolving Credit Facility Due 2028 [Member] | Line of Credit [Member] | Recourse |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, maturity date | Jul. 18, 2028 | Jul. 18, 2028 |  |
Revolving Credit Facility Due 2028 [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commitment fee on undrawn amounts (percent) |  | 0.125% |  |
Revolving Credit Facility Due 2028 [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commitment fee on undrawn amounts (percent) |  | 0.20% |  |
Revolving Credit Facility Due 2028 [Member] | Base Rate [Member] | Minimum [Member] | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) |  | 0.125% |  |
Revolving Credit Facility Due 2028 [Member] | Base Rate [Member] | Maximum [Member] | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) |  | 0.50% |  |
Revolving Credit Facility Due 2028 [Member] | Secured Overnight Financing Rate (SOFR) | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit Spread Adjustment on Credit Agreement |  | 0.10% |  |
Revolving Credit Facility Due 2028 [Member] | Secured Overnight Financing Rate (SOFR) | Minimum [Member] | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) |  | 1.125% |  |
Revolving Credit Facility Due 2028 [Member] | Secured Overnight Financing Rate (SOFR) | Maximum [Member] | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) |  | 1.50% |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: 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)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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