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Financial Instruments - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Feb. 10, 2021
--- | --- | ---
Senior Notes | 4¾% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Senior note interest rate | 4.75% |
Senior Notes | 3¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Senior note interest rate | 3.25% |
Senior Notes | 4⅛% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Senior note interest rate | 4.125% |
Senior Notes | 2¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Senior note interest rate | 2.25% |
Senior Notes | 1.4% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Senior note interest rate | 1.40% | 1.40%
Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | $ 164,821 |
Carrying Amount | Bank debt |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 642,991 |
Carrying Amount | Senior Notes | 4¾% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 300,000 |
Carrying Amount | Senior Notes | 3¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 770,835 |
Carrying Amount | Senior Notes | 4⅛% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 600,000 |
Carrying Amount | Senior Notes | 2¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 592,950 |
Carrying Amount | Senior Notes | 1.4% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 500,000 |
Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | 164,821 |
Fair Value | Bank debt |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 642,991 |
Fair Value | Senior Notes | 4¾% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 304,890 |
Fair Value | Senior Notes | 3¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 777,850 |
Fair Value | Senior Notes | 4⅛% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 622,500 |
Fair Value | Senior Notes | 2¼% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | 597,397 |
Fair Value | Senior Notes | 1.4% Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Bank debt | $ 495,000 |

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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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. + References No definition available. + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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