Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share (Tables) [Abstract]

Computation of basic and diluted earnings per share

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2014		2013		2014		2013
Numerator for basic and diluted earnings
	per share - net income (loss) attributable
	to common stockholders	$	71,829	$	(8,508)	$	121,851	$	46,551
Denominator for basic earnings per
	share - weighted average shares		296,256		273,091		293,046		266,602
Effect of dilutive securities:
	Employee stock options		191		283		170		-
	Non-vested restricted shares		472		370		506		-
	Convertible senior unsecured notes		1,076		2,737		868		-
Dilutive potential common shares			1,739		3,390		1,544		-
Denominator for diluted earnings per
	share - adjusted weighted average shares		297,995		276,481		294,590		266,602
Basic earnings per share		$	0.24	$	(0.03)	$	0.42	$	0.17
Diluted earnings per share		$	0.24	$	(0.03)	$	0.41	$	0.17