Earnings per Common Share - EPS Schedule (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net income	$ 2,379	$ 29,398
Less: Net loss attributable to noncontrolling interests in subsidiaries	5	108
Allocation of earnings to unvested restricted share awards	90	108
Adjusted net income attributable to the controlling interests	$ 2,294	$ 29,398
Weighted average shares outstanding - basic (in shares)	68,301	68,141
Effect of dilutive securities: Employee stock options and restricted share awards	187	50
Weighted average shares outstanding - diluted (in shares)	68,488	68,191
Net income per share (in dollars per share)	$ 0.03	$ 0.43
Net income per share (in dollars per share)	$ 0.03	$ 0.43