Fair Value Measurements and Disclosures - Summary of Fair Value of Financial Assets and Liabilities (Detail) - Other Indefinite Lived Intangible Assets [Member] $ in Thousands	Dec. 31, 2020 USD ($)
Liabilities:
Long-term debt less unamortized debt issuance costs	$ 218,764
Fair Value, Inputs, Level 1 [Member]
Liabilities:
Long-term debt less unamortized debt issuance costs	0
Fair Value, Inputs, Level 2 [Member]
Liabilities:
Long-term debt less unamortized debt issuance costs	201,263
Fair Value, Inputs, Level 3 [Member]
Liabilities:
Long-term debt less unamortized debt issuance costs	$ 0