Earnings Per Share Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) from Continuing Operations Available to Common Stockholders, Diluted	[1]	$ 17,583	$ 12,373	$ 47,453	$ 43,138
Net income from discontinued operations	[1]	1,047	1,316	4,357	4,956
Net Income (Loss) Available to Common Stockholders, Diluted		$ 18,630	$ 13,689	$ 51,810	$ 48,094
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.21	$ 0.15	$ 0.57	$ 0.52
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share		0.01	0.01	0.05	0.06
Earnings Per Share, Diluted		0.22	0.16	0.62	0.58
Common Stock, Dividends, Per Share, Cash Paid		$ 0.10	$ 0.09	$ 0.30	$ 0.27
Common Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		81,301,499	81,103,938	81,280,014	80,801,113
Incremental Common Shares Attributable to Share-based Payment Arrangements	[1],[2]	956,446	1,140,932	959,917	1,213,427
Incremental Common Shares Attributable to Call Options and Warrants	[2]	1,304,338	1,193,543	1,190,549	1,214,489
Weighted Average Number Diluted Shares Outstanding Adjustment		2,260,784	2,334,475	2,150,466	2,427,916
Weighted Average Number of Shares Outstanding, Diluted	[1],[2]	83,562,283	83,438,413	83,430,480	83,229,029

[1] The Company presents its EPS based on the treasury stock method. The Company reverted to the treasury stock presentation from the two-class presentation due to the immaterial number of participating shares outstanding as of March 31, 2016. If the EPS presentation had been based on the two-class method, the following adjustments would have been made to the presentation of EPS for the three and nine months ended September 30, 2016. Net income attributable to common shareholders would have been reduced by an additional $4 thousand, for the nine months ended September 30, 2016, with no change for the three month period then ended. The allocation of net income to participating securities would have been $1 thousand and $7 thousand, for the three and nine months ended September 30, 2016, respectively, reducing net income attributable to common shareholders by a total of $1 thousand and $11 thousand, for the three and nine months ended September 30, 2016, respectively. Basic EPS would not change. Weighted average diluted shared outstanding would have been reduced by 3,809 shares and 13,477 shares for the three and nine months ended September 30, 2016, respectively. Diluted EPS would not change.If the EPS presentation had been based on the two-class method, the following adjustments would have been made to the presentation of EPS for the three and nine months ended September 30, 2015. Net income attributable to common shareholders would have been reduced by an additional $5 thousand and $85 thousand, for the three and nine months ended September 30, 2015, respectively, and the allocation of net income to participating securities would have been $8 thousand and $91 thousand, for the three and nine months ended September 30, 2015, respectively, reducing net income attributable to common shareholders by a total of $13 thousand and $176 thousand, for the three and nine months ended September 30, 2015, respectively. Basic EPS would decrease by $0.01 per share for the nine months ended September 30, 2015, with no change for the three months ended September 30, 2015. Weighted average diluted shares outstanding would have been reduced by 69,218 shares and 211,108 shares, for the three and nine months ended September 30, 2015, respectively. Diluted EPS would not change.

[2] The diluted EPS computations for the three and nine months ended September 30, 2016 and 2015 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 September 30, Nine months ended September 30, 2016 2015 2016 2015Shares 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 options, restricted stock, or other dilutive securities224 508 285 559Total shares excluded due to exercise price exceeding the average market price of common shares during the period224 508 285 559