Long-term Debt - Summary of Debt Instruments (Detail) (Parenthetical) - USD ($) $ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Debt Disclosure [Abstract] | ||
| Accumulated Amortization, Debt Issuance Costs | $ 3.7 | $ 1.8 |
| X | ||||||||||
- Definition Amount of accumulated amortization of debt issuance costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|