Property And Equipment (Summary Of Results Of Operations Of Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Property, Plant and Equipment [Line Items]
Revenue	$ 69,642	$ 62,947	$ 129,209	$ 125,378
Less: operating expense	61,876	57,290	118,907	114,891
Income (loss) from discontinued operations, net of tax		44		120
Indooroopilly Property [Member]
Property, Plant and Equipment [Line Items]
Revenue		196		418
Less: operating expense		152		298
Income (loss) from discontinued operations, net of tax		$ 44		$ 120