| **Fair Value Of Assets And Liabilities (Details) - USD ($) $ in Millions**                       | Jun. 30, 2022 | Apr. 13, 2022 | Dec. 31, 2021 |
|--------------------------------------------------------------------------------------------------|---------------|---------------|---------------|
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | $ 1,589.3     |          | $ 64.3        |
| Level 1                                                                                          |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | 1,589.3       |          | 64.3          |
| Level 2                                                                                          |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | 0.0           |          | 0.0           |
| Level 3                                                                                          |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | $ 0.0         |          | 0.0           |
| 2027 Senior Notes | Senior Notes                                                                 |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Stated interest rate                                                                             | 5.50%         |          |          |
| 2027 Senior Notes | Senior Notes | Level 1                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | $ 0.0         |          | 0.0           |
| 2027 Senior Notes | Senior Notes | Level 2                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 565.5         |          | 619.5         |
| 2027 Senior Notes | Senior Notes | Level 3                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| 2028 Senior Notes | Senior Notes | Level 1                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| 2028 Senior Notes | Senior Notes | Level 2                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 622.3         |          | 724.5         |
| 2028 Senior Notes | Senior Notes | Level 3                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| Senior Notes Due 2030 | Senior Notes                                                             |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Stated interest rate                                                                             |          | 5.75%         |          |
| Senior Notes Due 2030 | Senior Notes | Level 1                                                   |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          |          |
| Senior Notes Due 2030 | Senior Notes | Level 2                                                   |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 1,102.4       |          |          |
| Senior Notes Due 2030 | Senior Notes | Level 3                                                   |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          |          |
| Term Loan B | Term Loan B | Level 1                                                              |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| Term Loan B | Term Loan B | Level 2                                                              |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 382.0         |          | 384.0         |
| Term Loan B | Term Loan B | Level 3                                                              |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| Term Loan B | Term Loan B-1 | Level 1                                                            |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| Term Loan B | Term Loan B-1 | Level 2                                                            |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 296.3         |          | 297.8         |
| Term Loan B | Term Loan B-1 | Level 3                                                            |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 0.0           |          | 0.0           |
| Carrying Amount                                                                                  |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | 1,589.3       |          | 64.3          |
| Carrying Amount | 2027 Senior Notes | Senior Notes                                               |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 594.8         |          | 594.3         |
| Carrying Amount | 2028 Senior Notes | Senior Notes                                               |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 698.3         |          | 698.1         |
| Carrying Amount | Senior Notes Due 2030 | Senior Notes                                           |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 1,195.4       |          |          |
| Carrying Amount | Term Loan B | Term Loan B                                                      |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 380.0         |          | 381.6         |
| Carrying Amount | Term Loan B | Term Loan B-1                                                    |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 292.8         |          | 294.0         |
| Fair Value                                                                                       |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Restricted cash                                                                                  | 1,589.3       |          | 64.3          |
| Fair Value | 2027 Senior Notes | Senior Notes                                                    |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 565.5         |          | 619.5         |
| Fair Value | 2028 Senior Notes | Senior Notes                                                    |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 622.3         |          | 724.5         |
| Fair Value | Senior Notes Due 2030 | Senior Notes                                                |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 1,102.4       |          |          |
| Fair Value | Term Loan B | Term Loan B                                                           |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | 382.0         |          | 384.0         |
| Fair Value | Term Loan B | Term Loan B-1                                                         |          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** |          |          |          |
| Financial liabilities                                                                            | $ 296.3       |          | $ 297.8       |

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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.
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| - Definition
Contractual interest rate for funds borrowed, under the debt agreement.
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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| - Definition
Amount of cash and cash equivalents 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. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
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