Earnings Per Share Basic Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income from continuing operations	$ 16,349		$ 12,411
Net Income (Loss) Attributable to Noncontrolling Interest	1,236		930
Income (Loss) from Continuing Operations Attributable to Parent	15,113		11,481
Noncontrolling Interest, Change in Redemption Value	(116)	[1]	(15)	[1]
Preferred Stock Dividends and Other Adjustments	(945)		(442)
Other Preferred Stock Dividends and Adjustments	(1,061)		(457)
Net Income Loss Continuing Available to Common Shareholders Basic Before Participating	14,052		11,024
Undistributed Earnings Continuing Ops Allocated to Participating Securities	(94)		(731)
Net Income (Loss) from Continuing Ops Available to Common Stockholders, Basic	13,958		10,293
Net income from discontinued operations	1,928		1,722
Undistributed Earnings Discontinued Operations Allocated to Participating Securities	(23)		(177)
Net Income from Discontinued Ops Available to Common Stockholders, Basic	1,905		1,545
Net Income (Loss) Available to Common Stockholders Basic before Allocation to Participating Securities	15,980		12,746
Undistributed Earnings Allocated to Participating Securities	(117)		(908)
Net income attributable to common shareholders for earnings per share calculation	$ 15,863		$ 11,838
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.18		$ 0.13
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.02		$ 0.02
Earnings Per Share, Basic	$ 0.20		$ 0.15
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding	78,145,185		76,818,610

[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, 2013 for a description of the redemption values related to the redeemable noncontrolling interests. In accordance with the Financial Accounting Standards Board (“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.