Earnings Per Share (Schedule of Earnings Per Share) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Net income attributable to the Company	$ 21,724	$ 36,178
Less: dividends and undistributed earnings allocated to unvested restricted stock units (“RSUs”)	52	54
Net income allocated to common stockholders	$ 21,672	$ 36,124
Basic weighted-average shares	106,166	107,552
Effect of dilutive employee stock options and RSUs	2,110	2,441
Diluted weighted-average shares	108,276	109,993
Basic	$ 0.20	$ 0.34
Diluted	$ 0.20	$ 0.33