Stock Based Compensation Restricted Stock Activity (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary of Restricted Stock Awards Activity (Excluding Salary Shares)
Outstanding Shares, Beginning balance	932,425	1,013,765	772,262
Granted, Shares	1,276,868	506,258	593,437
Vested, Shares	(626,480)	(533,014)	(169,499)
Forfeited, Shares	(71,048)	(54,584)	(182,435)
Outstanding Shares, Ending balance	1,511,765	932,425	1,013,765
Outstanding, Weighted Average Grant Date Fair Value, Beginning balance	$ 13.60	$ 13.79	$ 13.94
Granted, Weighted Average Grant Date Fair Value	$ 14.03	$ 13.00	$ 14.27
Vested, Weighted Average Grant Date Fair Value	$ 13.68	$ 13.38	$ 17.74
Forfeited, Weighted Average Grant Date Fair Value	$ 13.92	$ 13.73	$ 13.86
Outstanding Weighted Average Grant Date Fair Value, Ending balance	$ 13.92	$ 13.60	$ 13.79