Equity Compensation and Employee Benefit Plans (Equity Compensation Expense and Related Income Tax Benefit Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options
Equity Compensation [Abstract]
Pre-tax compensation expense	$ (25)	$ 30	$ 116
Tax benefit	(9)	11	46
Stock expense, net of tax	(16)	19	70
Restricted Stock
Equity Compensation [Abstract]
Pre-tax compensation expense	2,337	1,875	4,134
Tax benefit	886	722	1,622
Stock expense, net of tax	1,451	1,153	2,512
Performance Shares
Equity Compensation [Abstract]
Pre-tax compensation expense	167	2,514	1,859
Tax benefit	63	968	724
Stock expense, net of tax	$ 104	$ 1,546	$ 1,135