Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Organization And Operations [Abstract]

Schedule Of Useful Life Of Property And Equipment

Land improvements	5 – 20 years
Buildings and improvements	5 – 50 years
Equipment and software	3– 5 years
Office furniture and fixtures	5 years

Schedule Of Financial Instruments Having Difference Between Carrying Amount And Fair Value

	December 31,
	2011						2010
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Investment in direct financing lease	$	10,798		$	12,613		$	12,185		$	14,439
Note receivable from APM	$	4,749		$	7,825		$	4,880		$	7,970
Debt	$	(1,245,014	)	$	(1,302,550	)	$	(1,156,568	)	$	(1,206,347	)