Fair Value Disclosures - Summary of Assets and Liabilities Related to Financial Instruments, Measured at Fair Value on a Recurring Basis (Detail) - Level 2 - Recurring - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Term loan | Book Value | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Assets and liabilities related to financial instruments | $ 250,000 | $ 0 |
Term loan | Fair Value | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Assets and liabilities related to financial instruments | 250,000 | 0 |
Senior Notes | Book Value | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Assets and liabilities related to financial instruments | 1,045,072 | 1,425,397 |
Senior Notes | Fair Value | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Assets and liabilities related to financial instruments | $ 1,104,750 | $ 1,308,826 |