Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share (Tables) [Abstract]

Computation of basic and diluted earnings per share

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2015		2014		2015		2014
Numerator for basic and diluted earnings
	per share - net income (loss) attributable
	to common stockholders	$	182,043	$	136,255	$	685,413	$	258,107
Denominator for basic earnings per
	share - weighted average shares		351,765		311,117		346,425		299,137
Effect of dilutive securities:
	Employee stock options		114		202		155		181
	Non-vested restricted shares		607		505		498		506
	Redeemable shares		621		-		207		-
	Convertible senior unsecured notes		-		988		262		821
Dilutive potential common shares			1,342		1,695		1,122		1,508
Denominator for diluted earnings per
	share - adjusted weighted average shares		353,107		312,812		347,547		300,645
Basic earnings per share		$	0.52	$	0.44	$	1.98	$	0.86
Diluted earnings per share		$	0.52	$	0.44	$	1.97	$	0.86