Commitments and Contingencies Commitments and Contingencies Future Minimum Lease Payments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	$ 2,375
2014	2,420
2015	2,466
2016	2,513
2017	2,560
Thereafter	34,802
Total future minimum lease payments	47,136
Less interest portion	(23,141)
Present value of future minimum lease payments	23,995
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	17,335
2014	12,926
2015	9,823
2016	8,555
2017	6,141
Thereafter	10,478
Total future minimum lease payments	$ 65,258