Earnings Per Share Diluted 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, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income from continuing operations attributable to common shareholders, after assumed dilution		$ 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, after assumed dilution		$ 2,910	$ 22,829	$ 25,573	$ 37,325
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.03	$ 0.26	$ 0.28	$ 0.41
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share		0.00	0.01	0.02	0.03
Earnings Per Share, Diluted		0.03	0.27	0.30	0.44
Common Stock, Dividends, Per Share, Cash Paid		$ 0.12	$ 0.11	$ 0.24	$ 0.22
Common Stock [Member]
Earnings Per Share, Diluted, 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
Stock options, performance-based and time-based restricted stock, and performance-based and time-based restricted stock units, and other dilutive securities (3)	[1]	1,076,049	1,338,939	1,112,938	1,394,605
Warrants to purchase common stock (3)	[1]	828,411	1,104,248	804,463	1,137,909
Weighted Average Number Diluted Shares Outstanding Adjustment		1,904,460	2,443,187	1,917,401	2,532,514
Weighted average diluted common shares outstanding (3)	[1]	85,413,575	84,741,680	85,221,974	84,658,309

[1] The diluted EPS computations for the three and six months ended June 30, 2018 and 2017 do not assume the conversion, exercise, or contingent issuance of the following shares for the following periods because the result would have been anti-dilutive for the periods indicated. As a result of the anti-dilution, the potential common shares excluded from the diluted EPS computation are as follows: Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017Shares excluded due to exercise price exceeding the average market price of common shares during the period (total outstanding):(In thousands)Potential common shares from: Stock options16 54 136 87Total shares excluded due to exercise price exceeding the average market price of common shares during the period16 54 136 87