Discontinued Operations, Assets of Businesses Held for Sale & Sales of Businesses - Income Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Expenses [Abstract]
Loss from discontinued operations, net of tax	$ 0	$ 0	$ (1,332)
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues and gain (adjustment to gain) on sale			(1,148)
Operating Expenses [Abstract]
Compensation			70
Other expenses			930
Total expenses			1,000
Pre-tax loss from discontinued operations			(2,148)
Income tax benefit			816
Loss from discontinued operations, net of tax			$ (1,332)