Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Disclosure - Net Income (Loss) Per Share [Abstract]

Schedule Of Net Income Per Share Table [Text Block]

			For the three		For the three		For the six		For the six
			months ended		months ended		months ended		months ended
			June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
Numerator:
	Net income (loss)		$	176,146	$	124,185	$	536,287	$	(682,771)
	Less: preferred dividends			(15,405)		(8,631)		(30,811)		(17,263)
	Net income (loss) available to common shareholders		$	160,741	$	115,554	$	505,476	$	(700,034)
Denominator:
	Weighted number of common shares outstanding - basic			63,816.0		67,628.1		64,610.1		67,811.4
	Share options and other (1)			607.0		814.2		522.8		—
	Weighted average number of common shares and
		common share equivalents outstanding - diluted		64,423.0		68,442.3		65,132.9		67,811.4
Basic net income (loss) per share			$	2.52	$	1.71	$	7.82	$	(10.32)
Diluted net income (loss) per share(1)			$	2.50	$	1.69	$	7.76	$	(10.32)

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(1)       At June 30, 2012 and 2011, share based awards to purchase 1,512.6 thousand and 1,253.6 thousand common shares, respectively, were excluded from the calculation of diluted weighted average number of common shares and common share equivalents outstanding because their exercise prices were greater than the average market price of the common shares. In addition, dilutive securities, in the form of share options and other, of 958.5 thousand shares were not included in the weighted average number of common shares and common share equivalents outstanding for the purpose of computing the diluted net loss per share because to do so would have been anti-dilutive for the six months ended June 30, 2011.