Share-Based and Long-Term Incentive Plans - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options, Outstanding Beginning Balance	9,564,202
Options, Exercised	(1,601,809)
Options, Forfeited	(54,747)
Options, Expired	(25,257)
Options, Outstanding Ending Balance	7,882,389	9,564,202
Options, Exercisable as of March 31, 2020	7,593,802
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 19.85
Weighted Average Exercise Price, Exercised	16.19
Weighted Average Exercise Price, Forfeited	15.98
Weighted Average Exercise Price, Expired	23.08
Weighted Average Exercise Price, Outstanding Ending Balance	20.62	$ 19.85
Weighted Average Exercise Price, Exercisable as of March 31, 2020	$ 20.66
Weighted Average Contractual Term Remaining (in years)	5 years 21 days	5 years 5 months 4 days
Weighted Average Contractual Term Remaining (in years) Exercisable as of March 31,2020	4 years 11 months 19 days
Aggregate Intrinsic Value	$ 275,601	$ 156,270
Aggregate Intrinsic Value, Exercisable as of March 31, 2020	$ 265,146