Employee Benefit Plans (Amounts Included in Other Comprehensive Loss not Recognized in Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Pension plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Prior service cost	$ 0
Net actuarial loss	9,157
Other postretirement benefits
Defined Benefit Plans and Other Postretirement Benefit Plans
Prior service cost	0
Net actuarial loss	$ 0