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Acquisitions and Divestitures Divestitures Tables (Tables)
12 Months Ended
Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]
The summarized operating results of our discontinued operations are as follows:
 
Year Ended
December 31,
 
2013
Revenues
$
593,733

Cost and expenses
592,505

Operating income
1,228

Interest income
2

Income before income taxes
1,230

Gain on sale of discontinued operations
875

Income from discontinued operations
$
2,105