Shared-Based Compensation - Schedule of Performance Based Awards Goals with Respect to TSR and ROIC (Detail)	9 Months Ended
	Sep. 30, 2020
TSR Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage	35.00%
Target performance, percentage	50.00%
Maximum performance, percentage	75.00%
ROIC Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage	4.90%
Target performance, percentage	5.10%
Maximum performance, percentage	5.60%