Employee Benefit Plans Expected Benefit Payments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year, Description	The Company has no mandatory pension contribution requirements in 2014, but may make discretionary contributions.
Pension Plan, Defined Benefit [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2014	$ 19,987
2015	21,070
2016	22,118
2017	23,149
2018	24,191
2019 - 2023	133,459
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2014	1,071
2015	1,170
2016	1,259
2017	1,271
2018	1,394
2019 - 2023	$ 6,328