Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share (Tables) [Abstract]

Computation of basic and diluted earnings per share

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2017		2016		2017		2016
Numerator for basic and diluted earnings
	per share - net income (loss) attributable
	to common stockholders	$	188,429	$	195,474	$	501,068	$	344,444
Denominator for basic earnings per
	share - weighted average shares		366,524		356,646		364,551		355,879
Effect of dilutive securities:
	Employee stock options		50		129		60		115
	Non-vested restricted shares		479		465		438		359
	Redeemable shares		1,096		1,651		1,374		1,136
Dilutive potential common shares			1,625		2,245		1,872		1,610
Denominator for diluted earnings per
	share - adjusted weighted average shares		368,149		358,891		366,423		357,489
Basic earnings per share		$	0.51	$	0.55	$	1.37	$	0.97
Diluted earnings per share		$	0.51	$	0.54	$	1.37	$	0.96