Share-Based Compensation - Schedule of Performance Based Awards Goals with Respect to TSR and ROIC (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
TSR Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage	35.00%	35.00%	35.00%
Target Performance, percentage	50.00%	50.00%	50.00%
Maximum Performance, percentage	75.00%	75.00%	75.00%
ROIC Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold performance, percentage	4.70%	15.50%	15.00%
Target Performance, percentage	5.80%	18.00%	17.50%
Maximum Performance, percentage	7.00%	19.50%	20.00%