Share-Based Compensation - Schedule of Performance Based Awards Goals with Respect to TSR and ROIC (Detail)	2 Months Ended	12 Months Ended
	Mar. 12, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
TSR Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage		35.00%	35.00%	35.00%
Percentage of shares issuable based on threshold performance		50.00%
Target Performance, percentage		50.00%	50.00%	50.00%
Percentage of shares issuable based on target performance		100.00%
Maximum Performance, percentage		75.00%	75.00%	75.00%
Percentage of shares issuable based on maximum performance		150.00%
ROIC Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage		4.90%	4.70%	15.50%
Percentage of shares issuable based on threshold performance		35.00%
Target Performance, percentage		5.10%	5.80%	18.00%
Percentage of shares issuable based on target performance		100.00%
Maximum Performance, percentage		5.60%	7.00%	19.50%
Percentage of shares issuable based on maximum performance		150.00%
ROIC Awards | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage	6.70%
Percentage of shares issuable based on threshold performance	50.00%
Target Performance, percentage	7.90%
Percentage of shares issuable based on target performance	100.00%
Maximum Performance, percentage	8.70%
Percentage of shares issuable based on maximum performance	150.00%