Accruals and Other Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Accrued and Other Liabilities [Abstract]
Net Income (Loss) Attributable to Noncontrolling Interest	$ 859	$ 2,380	$ 9,054
Payments to Noncontrolling Interests	2,399	2,839	9,503
Beginning balance	5,473	$ 6,014	6,014
Other	(12)		(92)
Ending balance	$ 3,921		$ 5,473