XML 54 R43.htm IDEA: XBRL DOCUMENT v3.21.2
Fair Value Measurements - Fair Value Disclosures of Financial Instrument Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Recorded Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, net (including current portion) $ (2,326,547) $ (2,347,587)
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, net (including current portion) $ (2,485,398) $ (2,550,956)