Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Diluted earnings per share
Income (loss)	$ 9,933	$ 28,435	$ 3,687	$ 34,211
Loss from discontinued operations, net of income taxes	(2)	(2)	(4)	(2)
Net income	9,931	28,433	3,683	34,209
Less: net income attributable to noncontrolling interests	1,922	5,136	10,942	9,446
Numerator	$ 8,009	$ 23,297	$ (7,259)	$ 24,763
Weighted average common stock outstanding	45,236	43,798	44,553	43,758
Effect of dilutive securities	411	215	0	217
Denominator, Net, Diluted	45,647	44,013	44,553	43,975
Diluted earnings (loss) per share, Net	$ 0.18	$ 0.53	$ (0.16)	$ 0.56
Continuing Operations [Member]
Diluted earnings per share
Income (loss)	$ 9,933	$ 28,435	$ 3,687	$ 34,211
Less: net income attributable to noncontrolling interests	1,922	5,136	10,942	9,446
Numerator	$ 8,011	$ 23,299	$ (7,255)	$ 24,765
Weighted average common stock outstanding	45,236	43,798	44,553	43,758
Effect of dilutive securities	411	215	0	217
Denominator, Net, Diluted	45,647	44,013	44,553	43,975
Diluted earnings per share, Continuing Operations	$ 0.18	$ 0.53	$ (0.16)	$ 0.56
Discontinued Operations [Member]
Diluted earnings per share
Loss from discontinued operations, net of income taxes	$ (2)	$ (2)	$ (4)	$ (2)
Less: net income attributable to noncontrolling interests	0	0	0	0
Numerator	$ (2)	$ (2)	$ (4)	$ (2)
Weighted average common stock outstanding	45,236	43,798	44,553	43,758
Effect of dilutive securities	411	215	0	217
Denominator, Net, Diluted	45,647	44,013	44,553	43,975
Diluted earnings per share, Discontinued Operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00