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Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2023
Investments, All Other Investments [Abstract] |
Summary of Carrying Amounts and Estimated Fair Values of Other Financial Instruments | The following table summarizes the carrying amounts and estimated fair values of our other financial instruments at June 30, 2023:
| Carrying Amount |  | Fair Value
| (Dollars in thousands)
Assets: |  |  |
Cash and cash equivalents | $ | 236,606 |  |  | $ | 236,606 |
Liabilities: |  |  |
Bank debt | $ | 1,759,016 |  |  | $ | 1,759,016 |
3¼% Senior Notes | 709,150 |  |  | 696,570 |
4⅛% Senior Notes | 599,376 |  |  | 550,530 |
2¼% Senior Notes | 545,500 |  |  | 471,012 |
1.4% Senior Secured Notes | 499,849 |  |  | 441,595 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-11 + Details
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