Employee Benefit Plan Summary of Components of Net Periodic Pension Cost (Benefit) (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2014 Subsequent event
Subsequent Event [Line Items]
Estimated losses, before income tax, expected to recognize upon settlement of pension plan termination, minimum					$ 18,000,000
Estimated losses, before income tax, expected to recognize upon settlement of pension plan termination, maximum					21,000,000
Service cost	0	0	0	224,000
Interest cost	149,000	172,000	496,000	484,000
Expected loss (return) on assets	137,000	138,000	412,000	(580,000)
Settlement charges	529,000	212,000	969,000	606,000
Amortization of loss	115,000	50,000	373,000	248,000
Net periodic pension cost	$ 930,000	$ 572,000	$ 2,250,000	$ 982,000