Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Stock-based Compensation - Summary of Information with Respect to Stock-Based Compensation (Detail) - USD ($)		12 Months Ended
	May 28, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	500,000
Income tax benefit related to stock-based compensation included in net income		$ 3,571,000	$ 3,529,000	$ 2,674,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative expenses		3,200,000	3,000,000.0	1,200,000
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Salaries and employee benefits (1)		460,000	460,000	562,000
Labor and Related Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Salaries and employee benefits (1)		$ 12,968,000	$ 12,857,000	$ 9,548,000