Earnings Per Share Basic Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income from continuing operations		$ 22,038	$ 14,996
Net Income (Loss) Attributable to Noncontrolling Interest		1,050	966
Income (Loss) from Continuing Operations Attributable to Parent		20,988	14,030
Noncontrolling Interest, Change in Redemption Value	[1]	(846)	297
Preferred Stock Dividends, Income Statement Impact		869	869
Other Preferred Stock Dividends and Adjustments		(23)	(1,166)
Net Income (Loss) from Continuing Ops Available to Common Stockholders, Basic		20,965	12,864
Net income from discontinued operations		1,698	1,632
Net income attributable to common shareholders for earnings per share calculation		$ 22,663	$ 14,496
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.25	$ 0.16
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share		0.02	0.02
Earnings Per Share, Basic		$ 0.27	$ 0.18
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		83,097,758	81,951,179

[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.