Business Acquisitions and Divestitures (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 31, 2015	Aug. 31, 2015	Sep. 30, 2015	Sep. 30, 2015
Business Acquisition [Line Items]
Loss on sale of assets			$ 1,612	$ 1,612
Business Strategy, Inc. [Member] | Minimum [Member]
Business Acquisition [Line Items]
Revenue sharing percentage		10.00%
Business Strategy, Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Revenue sharing percentage		30.00%
Business Strategy, Inc. [Member] | Other Nonoperating Income (Expense) [Member]
Business Acquisition [Line Items]
Loss on sale of assets	$ 1,600