Earnings Per Share (Schedule of Earnings Per Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net income attributable to the Company	$ 21,383	$ 107,320	$ 201,922	$ 261,970
Basic weighted-average shares	111,799	110,571	111,578	110,423
Effect of dilutive employee stock options and restricted stock units (“RSUs”)	776	680	676	583
Diluted weighted-average shares	112,575	111,251	112,254	111,006
Basic	$ 0.19	$ 0.97	$ 1.81	$ 2.37
Diluted	$ 0.19	$ 0.96	$ 1.80	$ 2.36