Equity Compensation and Employee Benefit Plans (Equity Compensation Expense and Related Income Tax Benefit Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Options
Equity Compensation [Abstract]
Pre-tax compensation expense	$ 0	$ 0	$ 6
Tax benefit	0	0	2
Stock expense, net of tax	0	0	4
Restricted Stock
Equity Compensation [Abstract]
Pre-tax compensation expense	4,943	4,143	3,244
Tax benefit	1,258	1,056	1,265
Stock expense, net of tax	3,685	3,087	1,979
Performance Shares
Equity Compensation [Abstract]
Pre-tax compensation expense	3,156	3,152	1,459
Tax benefit	803	804	569
Stock expense, net of tax	$ 2,353	$ 2,348	$ 890