Other Assets Components Of Other Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Other Assets, Noncurrent [Abstract]
Equity method investments	$ 47,739		$ 47,739		$ 50,605
Land	11,478		11,478		4,011
Other assets	4,793		4,793		3,452
Total	64,010		64,010		58,068
Equity method investments in variable interest entities	45,000		45,000		$ 47,100
Net income (loss) attributable to variable interest entities	$ 200	$ 800	$ 2,000	$ 900