Earnings Per Share Basic Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income from continuing operations		$ 7,404	$ 23,493	$ 29,442	$ 38,489
Less: Net Income (Loss) Attributable to Noncontrolling Interest		968	1,150	2,018	2,116
Income (Loss) from Continuing Operations Attributable to Parent		6,436	22,343	27,424	36,373
Decrease/ (increase) in noncontrolling interests' redemption values (1)	[1]	(408)	292	438	(5)
Dividends on preferred stock	[2]	3,116	869	3,985	1,738
Total adjustments to income attributable to common shareholders		3,524	577	3,547	1,743
Net income from continuing operations attributable to common shareholders, treasury stock method		2,912	21,766	23,877	34,630
Net income from discontinued operations		(2)	1,063	1,696	2,695
Net income attributable to common shareholders, treasury stock method		$ 2,910	$ 22,829	$ 25,573	$ 37,325
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.03	$ 0.27	$ 0.29	$ 0.42
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share		0.00	0.01	0.02	0.03
Earnings Per Share, Basic		$ 0.03	$ 0.28	$ 0.31	$ 0.45
Series D Preferred Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total adjustments to income attributable to common shareholders		$ 2,200		$ 2,200
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		83,509,115	82,298,493	83,304,573	82,125,795

[1] See Part II. Item 8. “Financial Statements and Supplementary Data - Note 14: Noncontrolling Interests” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 for a description of the redemption values related to the redeemable noncontrolling interests. In accordance with the FASB Accounting Standards Codification (“ASC”) 480, Distinguishing Liabilities from Equity (“ASC 480”), an increase in redemption value from period to period reduces income attributable to common shareholders. Decreases in redemption value from period to period increase income attributable to common shareholders, but only to the extent that the cumulative change in redemption value remains a cumulative increase since adoption of this standard in the first quarter of 2009.

[2] Consideration paid in excess of carrying value for the redemption of the 6.95% Non-Cumulative Perpetual Preferred Stock, Series D (“the Series D preferred stock”) of $2.2 million is considered a deemed dividend and, for purposes of calculating EPS, reduces net income attributable to common shareholders for the three and six month ended June 30, 2018.