Business Segments - Additional Information (Detail)		12 Months Ended
	Jan. 17, 2019 employee	Dec. 31, 2020 segment store
Segment Reporting [Abstract]
Number of reportable segments | segment		4
Number of stores | store		3
Number of segments combined | segment		2
Restructuring, expected number of positions eliminated | employee	300
Restructuring, remaining number of positions after elimination | employee	400