Equity Method Investments (Schedule of Income (Loss) From Equity Method Investments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Equity Method Investments [Line Items]
Proportionate share of net loss of equity method investees:	$ (133)	$ (9,791)	$ (265)	$ (18,409)
Amortization of difference in carrying amount and underlying equity in Joint Venture	0	(750)	0	(1,500)
Total loss from equity method investments	(133)	(10,541)	(265)	(19,909)
Joint Venture
Schedule of Equity Method Investments [Line Items]
Proportionate share of net loss of equity method investees:	0	(9,567)	0	(17,961)
Pursuant Health, Inc. (fka SoloHealth, Inc.)
Schedule of Equity Method Investments [Line Items]
Proportionate share of net loss of equity method investees:	$ (133)	$ (224)	$ (265)	$ (448)