XML 51 R38.htm IDEA: XBRL DOCUMENT v3.21.2
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