Earnings Per Share Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) from Continuing Operations Available to Common Stockholders, Diluted		$ 20,965	$ 12,864
Net income from discontinued operations		1,698	1,632
Net Income (Loss) Available to Common Stockholders, Diluted		$ 22,663	$ 14,496
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.25	$ 0.15
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share		0.02	0.02
Earnings Per Share, Diluted		0.27	0.17
Common Stock, Dividends, Per Share, Cash Paid		$ 0.12	$ 0.11
Common Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		83,097,758	81,951,179
Incremental Common Shares Attributable to Share-based Payment Arrangements	[1]	1,136,145	1,455,333
Incremental Common Shares Attributable to Call Options and Warrants	[1]	1,037,747	1,154,406
Weighted Average Number Diluted Shares Outstanding Adjustment		2,173,892	2,609,739
Weighted Average Number of Shares Outstanding, Diluted	[1]	85,271,650	84,560,918

[1] The diluted EPS computations for the three months ended March 31, 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 March 31, 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 options39 121Total shares excluded due to exercise price exceeding the average market price of common shares during the period39 121