Earnings Per Share (Schedule of Earnings Per Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income attributable to the Company	$ 186,655	$ 155,140	$ 296,230	$ 231,367
Basic weighted-average shares	113,050	112,556	112,881	112,406
Effect of dilutive employee stock options and restricted stock units (“RSUs”)	448	561	485	687
Diluted weighted-average shares	113,498	113,117	113,366	113,093
Basic	$ 1.65	$ 1.38	$ 2.62	$ 2.06
Diluted	$ 1.64	$ 1.37	$ 2.61	$ 2.05