Accruals and Other Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accrued and Other Liabilities [Abstract]
Net Income (Loss) Attributable to Noncontrolling Interest	$ 1,254	$ 2,841	$ 2,113	$ 5,221	$ 9,054
Payments to Noncontrolling Interests			5,413	6,971	9,503
Beginning balance			5,473	$ 6,014	6,014
Other			29		(92)
Ending balance	$ 2,202		$ 2,202		$ 5,473