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v3.23.3

Long-Term Debt (Narrative) (Details) - USD ($) | Jul. 01, 2021 | Jan. 29, 2021 | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 13, 2019 | Apr. 25, 2017
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Debt Instrument [Line Items] |  |  |  |  |  |
Outstanding letters of credit |  |  | $ 10,200,000 |  |  |
Line of Credit | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, principal amount |  | $ 400,000,000 |  |  |  |
Quarterly amortization payment |  | 1.00% |  |  |  |
Line of Credit | Term Loan | Federal Funds Rate |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 0.50% |  |  |  |
Line of Credit | Term Loan | One Month Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 1.00% |  |  |  |
Line of Credit | Term Loan | Adjusted SOFR Rate |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 1.75% |  |  |  |
Line of Credit | Term Loan | Alternate Base Rate |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 0.75% |  |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 350,000,000 |  |  |  |
Outstanding balance |  |  | 391,000,000 | $ 394,000,000 |  |
Principal payment period | $ 1,000,000 |  |  |  |  |
Outstanding under facility |  |  | $ 0 |  |  |
Total leverage ratio |  | 5.0 |  |  |  |
Temporary increase to leverage ratio |  | 5.5 |  |  |  |
Secured net leverage ratio financial maintenance covenants |  | 3.75 |  |  |  |
Temporary increase to secured net leverage ratio financial maintenance covenants |  | 4.25 |  |  |  |
Leverage ratio |  | 3.0 |  |  |  |
Actual total leverage ratio |  |  | 1.75 |  |  |
Maximum restricted payments in cash |  | $ 116,100,000 |  |  |  |
Maximum consolidated net tangible assets over the life of the credit agreement |  | 4.50% |  |  |  |
Line of Credit | Revolving Credit Facility | One Month Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 1.00% |  |  |  |
Line of Credit | Revolving Credit Facility | Adjusted SOFR Rate |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 0.10% |  |  |  |
Line of Credit | Revolving Credit Facility | Adjusted SOFR Rate | Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 1.75% |  |  |  |
Line of Credit | Revolving Credit Facility | Adjusted SOFR Rate | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 2.25% |  |  |  |
Line of Credit | Revolving Credit Facility | Alternate Base Rate | Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 0.75% |  |  |  |
Line of Credit | Revolving Credit Facility | Alternate Base Rate | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 1.25% |  |  |  |
Line of Credit | Revolving Credit Facility | Floor Rate |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Spread over variable rate |  | 0.00% |  |  |  |
Line of Credit | Letters of credit |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Outstanding letters of credit |  |  | $ 6,200,000 |  |  |
5.625% senior notes due 2027 (net of unamortized discount of $1.3 at September 30, 2023 and $1.6 at December 31, 2022) | Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, principal amount |  |  |  |  |  | $ 300,000,000
Interest rate |  |  | 5.625% |  |  | 5.625%
4.75% senior notes due 2029 (net of unamortized discount of $3.7 at September 30, 2023 and $4.2 at December 31, 2022) | Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, principal amount |  |  |  |  | $ 500,000,000 |
Interest rate |  |  | 4.75% |  | 4.75% |
3.75% senior notes due 2031 (net of unamortized discount of $4.6 at September 30, 2023 and $5.1 at December 31, 2022) | Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, principal amount |  | $ 500,000,000 |  |  |  |
Interest rate |  | 3.75% | 3.75% |  |  |

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