Income per Common Share of the Trust (Tables)

9 Months Ended

Sep. 30, 2011

Income per Common Share of the Trust [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the Three Months Ended					For the Three Months Ended
	September 30, 2011					September 30, 2010
	Income (Numerator)		Weighted Average Shares (Denominator)	Per Share		Income (Numerator)		Weighted Average Shares (Denominator)	Per Share
Basic income from continuing operations
Income from continuing operations net of noncontrolling interest	$	30,535	115,014	$	0.27	$	31,108	113,077	$	0.28
Dilutive shares for long-term compensation plans	—		766			—		696
Diluted income from continuing operations
Income from continuing operations net of noncontrolling interest	30,535		115,780	$	0.27	31,108		113,773	$	0.27
Basic income from discontinued operations
Discontinued operations net of noncontrolling interest	4,785		115,014	$	0.04	3,536		113,077	$	0.03
Dilutive shares for long-term compensation plans	—		766			—		696
Diluted income from discontinued operations
Discontinued operations net of noncontrolling interest	4,785		115,780	$	0.04	3,536		113,773	$	0.03
Basic income per common share
Net income available to common shareholders	35,320		115,014	$	0.31	34,644		113,077	$	0.31
Dilutive shares for long-term compensation plans	—		766			—		696
Diluted income per common share
Net income available to common shareholders	$	35,320	115,780	$	0.31	$	34,644	113,773	$	0.30

	For the Nine Months Ended					For the Nine Months Ended
	September 30, 2011					September 30, 2010
	Income (Numerator)		Weighted Average Shares (Denominator)	Per Share		Income (Numerator)		Weighted Average Shares (Denominator)	Per Share
Basic income from continuing operations
Income from continuing operations net of noncontrolling interest	$	89,993	114,547	$	0.78	$	85,131	112,708	$	0.76
Dilutive shares for long-term compensation plans	—		782			—		680
Diluted income from continuing operations
Income from continuing operations net of noncontrolling interest	89,993		115,329	$	0.78	85,131		113,388	$	0.75
Basic income from discontinued operations
Discontinued operations net of noncontrolling interest	59,214		114,547	$	0.52	12,509		112,708	$	0.11
Dilutive shares for long-term compensation plans	—		782			—		680
Diluted income from discontinued operations
Discontinued operations net of noncontrolling interest	59,214		115,329	$	0.51	12,509		113,388	$	0.11
Basic income per common share
Net income available to common shareholders	149,207		114,547	$	1.30	97,640		112,708	$	0.87
Dilutive shares for long-term compensation plans	—		782			—		680
Diluted income per common share
Net income available to common shareholders	$	149,207	115,329	$	1.29	$	97,640	113,388	$	0.86